Welcome! Are you:
Well, worry less! In the near future, this website will contain the answers to bunch of select Physics II questions for each topic (i.e., the exam practice problems), so that you can hopefully spend more time studying and less time struggling. Plus, this site is not locked behind any sort of frustrating paywall. I hope this site is useful! Remember to check for any differences, any single changed word/slight change in picture/etc, between what you have and what's listed here before using any asnwers from here. NOTE: images take up a lot of bandwidth & kilobytes, so only click on images that you need to see, or screenshot images yourself to save then for later. All images open in a new tab. Also, the CTRL + F keys allow you to search through this site, which may help you find a specific question you may be looking for.
To make it clear how different questions can vary, I will labelling them based on the 2 ways they can change between attempts: 'Lim-Var' denotes questions with a limited number of variations (for example, if a formula has, say, 4 variables in it, and the question asks "what will happen to the answer if the variable __ is doubled in mangitude?", then this question will very likely have 4 'variations' total, which means this question can change the variable it's asking about in 4 different ways between attempts). 'Inf-Var' denotes questions with infinite variations (every single attempt of this question will have different numbers to go with it, and the numbers may be barely or very different). Note that a question can be both of these types at the same time. Also note that not every variation of a Lim-Var question will be available.
NUM1, NUM2: RIGHTANS (NUMSIZE) (wrong: WRONGANS1, WRONGANS2, WRONGANS3)
For Inf-Var questions where the right answer's size is not consistent (i.e., most times its the biggest option relative to the ither options, but sometimes the 2nd-biggest), a 'Table of different numbers' has been provided. In these tables, every line has: a different combination of numbers that were generated (listed in order as they are in the written question), the corresponding answer, the size of that answer compared the the other options, and the other options that were listed. It will looks like what's above (if NUM1 and NUM2 were the values in the question, then RIGHTANS would be the answer, and it would be the biggest/2nd biggest/2nd smallest/smallest [NUMSIZE] of all the available options). If applicable, use the tables to try and deduce what the right answer will be for your circumstance (i.e., which set of numbers is the most similar to your set of numbers). Remember that e__ mean times 10 to the power of _blank_, so e2 would mean x10^2, and e-6 would mean x10^-6.
For all questions, any special symbols are replaced with words. This is becuase all non-letter charaters always appear funky (this might make finding this site harder, sorry. I also may find out how to solve this in the future). For example, the symbol theta within quatation marks appears as: "θ". Here's a list of symbols, and how they will be represented in questions (these links are to external websites):
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: The metal spheres, A and B, are initially neutral and are touching, A positively charged rod is brought near sphere A, but does not come in contact with it. While the rod is still near, the spheres are separated slightly so they are no longer touching. The charged rod is then removed. What is now the charge of sphere A ?
ANSWER: Negative
Click to See Image
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: The metal spheres, A and B, are initially neutral and are touching, A positively charged rod is brought near sphere A, but does not come in contact with it. While the rod is still near, the spheres are separated slightly so they are no longer touching. The charged rod is then removed. What is now the charge of sphere B ?
ANSWER: Positive
Click to See Image
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: Two charged spheres are placed as shown above. The size of the sphere represents how much charge it has. Choose the position (indicated by A, B, C, or D) where there would be zero net force on an electron.
ANSWER: D
Click to See Image (picture is important, pictures differentiate the variations for this one)
Question Type: Inf-Var
Has Picture: No
Question Transcription: A tiny, glass sphere has a charge of +5.70 nC. A metal ball bearing, which is 2.40 cm above the glass sphere, experiences an electric force of magnitude 0.0110 N. What is the ball bearing's charge?
ANSWER: 1.24x10^-7, the smallest number
Click to See Image
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: In the figure above, the distance between charges A and B and the distance between charges B and C are both 1.00 cm. If A = 4.50 nC, B = -6.00 nC, and C = 1.00 nC, what is the net electric force on A?
ANSWER: 0.00233 N to the right, the larger number & always to the right
Click to See Image (picture is probably important)
These are images collected from trying real questions, including pre-lecture questions. They're meant to be viewed in order, since every image usually contains the [basic] answer key for the previous image's questions. Be careful, any can be incorrect.
T1 other image 1
T1 other image 2
T1 other image 3
T1 other image 4
T1 other image 5
T1 other image 6
T1 other image 7
T1 other image 8
T1 other image 9
T1 other image 10
T1 other image 11
T1 other image 12
T1 other image 13
T1 other image 14
T1 other image 15
T1 other image 16
T1 other image 17
T1 other image 18
T1 other image 19
T1 other image 20
T1 other image 21
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: A long thin rod is bent into a perfect semicircle of radius 1.70 m. The linear change density of the rod is lambda = 6.30 nC/m. How much charge is on a small piece of the rod that subtends an angle delta lambda = 0.190 radians?
ANSWER: 2.03 nC, the 2nd-smallest number (**but sometimes the 2nd-biggest number)
Table of different numbers:
2.50 m, 9.70 nC/m, 0.120 radians: 2.91 nC (2nd-smallest number) (wrong: 32.3, 24.2, 1.16)
3.10 m, 7.60 nC/m, 0.180 radians: 4.24 nC (2nd-smallest number) (wrong: 23.6, 13.6, 1.37)
3.20 m, 8.80 nC/m, 0.160 radians: 4.51 nC (2nd-smallest number) (wrong: 28.2, 17.2, 1.41)
3.90 m, 2.50 nC/m, 0.200 radians: 1.95 nC (2nd-smallest number) (wrong: 9.75, 3.21, 0.500)
4.10 m, 1.90 nC/m, 0.200 radians: 1.56 nC (2nd-smallest number) (wrong: 7.79, 2.32, 0.380)
5.20 m, 3.20 nC.m, 0.140 radians: 2.33 nC (2nd-smallest number) (wrong: 16.6, 4.40, 0.448)
6.00 m, 1.80 nC/m, 0.120 radians: 1.30 nC (2nd-smallest number) (wrong: 10.8, 2.50, 0.216)
8.70 m, 8.60 nC/m, 0.170 radians: 12.7 nC (2nd-biggest number) (wrong: 74.8, 5.81, 1.46)
8.80 m, 5.90 nC/m, 0.190 radians: 9.86 nC (2nd-biggest number) (wrong: 51.9, 3.53, 1.12)
9.30 m, 1.60 nC/m, 0.200 radians: 2.98 nC (2nd-biggest number) (wrong: 14.9, .860, 0.320)
Click to See Image
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: The figure below shows electric field lines. Rank in order, from largest to smallest, the electric field strengths E_1 to E_4 at points 1 to 4.
ANSWER: 1=2, 3, 4
Click to See Image (picture is probably important)
Question Type: Inf-Var
Has Picture: No
Question Transcription: A 1.10 nC charge is located at the origin. What is the electric field at (x, y) = (1.90 cm, 6.00 cm)?
ANSWER: (754 N/C)i^ + (2.38x10^3 N/C)j^ , the smallest x number & never the only-i option (**but sometimes the 2nd-smallest x number)
Table of different numbers:
1.30 nC, 4.50 cm, 7.10 cm: 885 N/Ci, 1.40e3 N/Cj (smallest number) (wrong: 6.26e11i 9.87e11j, 1.10e4i 2.79e3j, 1.65e3i)
2.60 nC, 8.20 cm, 1.80 cm: 3.24e3 N/Ci, 711 N/Cj (2nd-smallest number) (wrong: 2.28e12i 5.01e11j, 1.81e3i 1.71e5j, 3.32e3i)
2.80 nC, 6.20 cm, 8.90 cm: 1.22e3 N/Ci, 1.76e3 N/Cj (smallest number) (wrong: 1.44e12i 2.07e12j, 4.20e3i 1.42e3j, 2.14e3i)
3.20 nC, 6.90 cm, 7.60 cm: 1.84e3 N/Ci, 2.02e3 N/Cj (smallest number) (wrong: 1.93e12i 2.13e12j, 3.04e3i 2.28e3j, 2.73e3i)
4.60 nC, 2.90 cm, 4.00 cm: 9.94e3 N/Ci, 1.37e4 N/Cj (smallest number) (wrong: 2.43e12i 3.35e12j, 4.10e4i 1.56e4j, 1.69e4i)
6.10 nC, 7.20 cm, 1.50 cm: 9.93e3 N/Ci, 2.07e3 N/Cj (2nd-smallest number) (wrong: 5.37e12i 1.12e12j, 2.68e3i 2.96e5j, 1.01e4i)
6.20 nC, 7.40 cm, 9.00 cm: 2.61e3 N/Ci, 3.17e3 N/Cj (2nd-smallest number) (wrong: 3.54e12i 4.31e12j, 2.47e3i 1.37e3j, 4.11e3i)
8.30 nC, 1.70 cm, 8.30 cm: 2.09e3 N/Ci, 1.02e4 N/Cj (smallest number) (wrong: 1.50e12i 7.31e12j, 2.04e5i 1.75e3j, 1.04e4i)
9.00 nC, 7.00 cm, 2.40 cm: 1.40e4 N/Ci, 4.79e3 N/Cj (2nd-smallest number) (wrong: 7.65e12i 2.62e12j, 2.92e3i 7.23e4j, 1.48e4i)
Click to See Image
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: In the figure above, charge A is -1.75 nC, charge B is 3.50 nC, and charge C is 1.75 nC. If x = 4.35 cm and y = 8.70 cm, what is the electric field at the dot?
ANSWER: 8.03x10^3 N/C, 19.4 degrees clockwise from the positive x-axis , the larger number & always the smaller angle clockwise
Click to See Image (picture is probably important)
These are images collected from trying real questions, including pre-lecture questions. They're meant to be viewed in order, since every image usually contains the [basic] answer key for the previous image's questions. Be careful, any can be incorrect.
T2 other image 1
T2 other image 2
T2 other image 3
T2 other image 4
T2 other image 5
T2 other image 6
T2 other image 7
T2 other image 8
T2 other image 9
T2 other image 10
T2 other image 11
T2 other image 12
T2 other image 13
T2 other image 14
T2 other image 15
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: In the figure above, a positive object at position 1 is let go from rest. Describe the object's motion.
ANSWER: It accelerates to right, ALWAYS (no matter if position 2/3/4/5 is being asked)
Click to See Image
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: An electric dipole is shown above with charges +-q and seprated by distance r. What is the correct direction of the electrc field at point P?
ANSWER: c
Click to See Image (picture is important)
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: An electric dipole is shown above with charges +-q and seprated by distance r. What is the correct direction of the electrc field at point Q?
ANSWER: b
Click to See Image (picture is important)
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: An electric dipole is shown above with charges +-q and seprated by distance r. What is the correct direction of the electrc field at point R?
ANSWER: c
Click to See Image (picture is important)
Question Type: Inf-Var
Has Picture: No
Question Transcription: A parallel plate capacitor is formed from two circular plates, each of radius 1.00 cm, separated by 3.90 mm. The plates are charged to +-14.5 nC. A proton is shot from the negative plate to the positive. What launch speed must the proton have to just barely reach the positive plate?
ANSWER: 1.97x10^6 m/s, the second smallest number
Click to See Image
Question Type: Inf-Var
Has Picture: No
Question Transcription: Two charged rings that are 25.5 cm apart face each other. The radius of each ring is 13.0 cm, the charge on the left ring is -2.20 nC, and the charge on the right ring is +2.20 nC. What is the magnitude of the electric field at the midpoint between the two rings?
ANSWER: 835 N/C, the biggest number
Click to See Image
These are images collected from trying real questions, including pre-lecture questions. They're meant to be viewed in order, since every image usually contains the [basic] answer key for the previous image's questions. Be careful, any can be incorrect.
T3 other image 1
T3 other image 2
T3 other image 3
T3 other image 4
T3 other image 5
T3 other image 6
T3 other image 7
T3 other image 8
T3 other image 9
T3 other image 10
T3 other image 11
T3 other image 12
T3 other image 13
T3 other image 14
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: The figure shown above displays a cross section of a three-dimensional closed surface with a flat top and bottom surface above and below the plane of the page. If there is no flux through the top or bottom surface, the electric field is everywhere parallel to the page and is uniform over each face of the surface, which of the following is true?
ANSWER: There is a positive net charge enclosed
Click to See Image (picture is important)
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: What is the electric flux through the surface of the figure provided?
ANSWER: +q/epsilon_0
Click to See Image (picture is important)
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: The surface shown is a square and has a side length of 5.00 cm. The electric field acting on this area has a magnitude of 121 N/C at an angle of 23.7 degrees. Calculate the electric flux through the shown surface.
ANSWER: -0.122 Nm^2 /C, the smallest number (taking sign into account) & always negative (**but sometimes the 2nd-smallest number)
Table of different numbers:
6.00 cm, 181 N/C, 26.0 deg: -0.286 Nm^2/C (2nd-smallest number) (wrong: 5.86e3, .586, -6.33e3)
7.00 cm, 146 N/C, 30.9 deg: -0.367 Nm^2/C (smallest number) (wrong: 6.14e3, 367, .614)
8.00 cm, 105 N/C, 35.9 deg: -0.394 Nm^2/C (smallest number) (wrong: 6.53e3, 5.44e3, .544)
9.00 cm, 128 N/C, 27.1 deg: -0.472 Nm^2/C (2nd-smallest number) (wrong: 9.23e3, .923, -6.76e3)
10.0 cm, 102 N/C, 27.0 deg: -0.463 Nm^2/C (2nd-smallest number) (wrong: 9.09e3, .909, -7.39e3)
11.0 cm, 109 N/C, 24.2 deg: -0.541 Nm^2/C (smallest number) (wrong: 1.20e4, 5.95e3, 1.20)
12.0 cm, 112 N/C, 39.3 deg: -1.02 Nm^2/C (2nd-smallest number) (wrong: 1.25e4, 1.25, -1.42e4)
13.0 cm, 139 N/C, 33.9 deg: -1.31 Nm^2/C (2nd-smallest number) (wrong: 1.95e4, 1.95, -4.50e3)
14.0 cm, 114 N/C, 33.5 deg: -1.23 Nm^2/C (2nd-smallest number) (wrong: 1.86e4, 1.86, -1.25e4)
15.0 cm, 120. N/C, 31.7 deg: -1.42 Nm^2/C (2nd-smallest number) (wrong: 2.30e4, 2.30, -1.84e4)
16.0 cm, 168 N/C, 24.2 deg: -1.76 Nm^2/C (smallest number) (wrong: 3.92e4, 1.94e4, 3.92)
17.0 cm, 111 N/C, 32.8 deg: -1.74 Nm^2/C (2nd-smallest number) (wrong: 2.70e4, 2.70, -3.08e4)
18.0 cm, 185 N/C, 25.0 deg: -2.53 Nm^2/C (2nd-smallest number) (wrong: 5.43e4, 5.43, -1.95e4)
19.0 cm, 160. N/C, 24.6 deg: -2.40 Nm^2/C (smallest number) (wrong: 5.25e4, 3.93e3, 5.25)
20.0 cm, 162 N/C, 38.8 deg: -4.06 Nm^2/C (2nd-smallest number) (wrong: 5.05e4, 5.05, -6.48e4)
Click to See Image
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: In the figure above, the negative charge has a magnitude of 25.0 nC (and lies inside the doughnut shape) and the positive charge has a magnitude of 69.0 nC. What is the flux through the doughnut surface?
ANSWER: -2.82e3 Nm^2/C, the 2nd-smallest number (taking sign into account) & always negative
Click to See Image
These are images collected from trying real questions, including pre-lecture questions. They're meant to be viewed in order, since every image usually contains the [basic] answer key for the previous image's questions. Be careful, any can be incorrect.
T4 other image 1
T4 other image 2
T4 other image 3
T4 other image 4
T4 other image 5
T4 other image 6
T4 other image 7
T4 other image 8
T4 other image 9
T4 other image 10
T4 other image 11
T4 other image 12
T4 other image 13
T4 other image 14
T4 other image 15
T4 other image 16
T4 other image 17
T4 other image 18
T4 other image 19
T4 other image 20
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: The figure provided shows an electron that is released from rest at x = 2 m. Which of the following best describes the electron's motion?
ANSWER: the electron moves to the right.
Click to See Image (picture is probably important)
Question Type: Inf-Var
Has Picture: No
Question Transcription: A capacitor with plates separated by 0.0100 m is charged to a potential difference of 8.50 V. All wires and batteries are then disconnected, and the two plates are pulled apart to a new separation distance of 0.0200 m. What is the potential difference after the increase in separation?
ANSWER: 17.0 V, the 2nd-biggest number
Click to See Image
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: What is the electric potential at the dot in the figure? The charge on Q_1 is 2.00 nC, the charge on Q_2 is 3.00 nC and the charge on Q_3 is 3.00 nC. The distance between charge Q_1 and charge Q_2 is 6.00 cm. The distance between Q_2 and Q_3 is 2.00 cm.
ANSWER: 1.77x10^3 V, the biggest number
Click to See Image (picture is important)
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: Given the values below, calculate the potential energy of the group of charges shown. d = 2.10 cm q_1 = 6.70 nC q_2 = -6 nC q_3 = -7.6 nC
ANSWER: -1.95x10^-5 J, which fluctuates in in sign & relative size but is always to the power of the biggest number, and is also a negative power (in other words, the answer always the number closest to zero)
Table of different numbers:
2.60 cm, 8.10 nC, 2.6 nC, 7.9 nC: -2.23e-5 J (biggest number) (wrong: -0.000858, -3.19, -830.)
3.10 cm, 5.20 nC, 3.6 nC, 2.4 nC: -6.54e-6 J (biggest number) (wrong: -0.000211, -0.748, -232)
3.20 cm, 8.10 nC, 5.2 nC, 3.3 nC: -1.45e-5 J (biggest number) (wrong: -0.000454, -0.351, -112)
3.50 cm, 5.80 nC, 6.5 nC, 5.2 nC: -8.75e-6 J (biggest number) (wrong: -0.000250, -4.33, -1.52e3)
3.70 cm, 2.30 nC, 8.9 nC, 5.5 nC: 3.85e-6 J (2nd-biggest number) (wrong: 0.000104, -7.95, -2.94e3)
3.70 cm, 7.20 nC, 4.2 nC, 2.8 nC: -9.39e-6 J (2nd-smallest number) (wrong: 48.6, 0.131, -0.000254)
4.00 cm, 6.40 nC, 6.5 nC, 3.7 nC: -9.27e-6 J (biggest number) (wrong: -0.000232, -2.14, -854)
4.40 cm, 2.70 nC, 6.3 nC, 7.7 nC: 2.19e-6 J (2nd-biggest number) (wrong: 4.97e-5, -5.25, -2.31e3)
4.70 cm, 5.40 nC, 4.2 nC, 5.7 nC: -5.65e-6 J (biggest number) (wrong: -0.000120, -1.83, -861)
5.10 cm, 3.80 nC, 9 nC, 2 nC: -4.20e-6 J (biggest number) (wrong: -8.23e-5, -2.49, -1.27e3)
5.50 cm, 3.90 nC, 5.2 nC, 5 nC: -2.25e-6 J (biggest number) (wrong: -4.10e-5, -1.87, -1.03e3)
6.10 cm, 2.40 nC, 7.1 nC, 5.3 nC: 1.16e-6 J (2nd-biggest number) (wrong: 1.90e-5, -2.42, -1.47e3)
6.30 cm, 3.00 nC, 5.8 nC, 6.6 nC: 1.54e-7 J (2nd-biggest number) (wrong: 2.45e-6, -2.13, -1.34e3)
6.40 cm, 8.80 nC, 6.8 nC, 7.3 nC: -1.05e-5 J (biggest number) (wrong: -0.000163, -1.16, -744)
6.50 cm, 2.40 nC, 5.5 nC, 6.2 nC: 8.33e-7 J (2nd-biggest number) (wrong: 1.28e-5, -1.98, -1.29e3)
6.70 cm, 6.50 nC, 4.7 nC, 5.1 nC: -5.33e-6 J (biggest number) (wrong: -7.96e-5, -0.661, -443)
7.20 cm, 4.20 nC, 5 nC, 3 nC: -2.32e-6 J (biggest number) (wrong: -3.23e-5, -0.659, -474)
7.60 cm, 5.30 nC, 3.2 nC, 7.8 nC: -3.94e-6 J (biggest number) (wrong: -5.19e-5, -0.887, -674)
7.60 cm, 8.60 nC, 2.6 nC, 5.2 nC: -6.34e-6 J (2nd-smallest number) (wrong: 94.6, 0.125, -8.34e-5)
8.10 cm, 7.90 nC, 5.6 nC, 7.1 nC: -6.72e-6 J (biggest number) (wrong: -8.30e-5, -0.658, -533)
8.80 cm, 4.50 nC, 7.4 nC, 6.8 nC: -1.39e-6 J (biggest number) (wrong: -1.58e-5, -1.13, -991)
9.00 cm, 8.60 nC, 8.7 nC, 0.0 nC: -7.45e-6 J (biggest number) (wrong: -8.27e-5, -0.322, -290.)
Click to See Image (picture is important)
These are images collected from trying real questions, including pre-lecture questions. They're meant to be viewed in order, since every image usually contains the [basic] answer key for the previous image's questions. Be careful, any can be incorrect.
T5 other image 1
T5 other image 2
T5 other image 3
T5 other image 4
T5 other image 5
T5 other image 6
T5 other image 7
T5 other image 8
T5 other image 9
T5 other image 10
T5 other image 11
T5 other image 12
T5 other image 13
T5 other image 14
T5 other image 15
T5 other image 16
T5 other image 17
T5 other image 18
T5 other image 19
T5 other image 20
T5 other image 21
T5 other image 22
T5 other image 23
T5 other image 24
T5 other image 25
T5 other image 26
T5 other image 27
T5 other image 28
T5 other image 29
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: As shown above, sphere 1 and sphere 2 are made of metal and connected together by a wire with a switch. While the switch is open, sphere 1 is given a positive total charge (and sphere 2 remains neutral). Then the switch is closed. How does the potential V_1 of sphere 1 compare to the potential V_2 of sphere 2?
ANSWER: V_1 is equal to V_2
Click to See Image (picture is probably important)
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: As shown above, sphere 1 and sphere 2 are made of metal and connected together by a wire with a switch. While the switch is open, sphere 1 is given a positive total charge (and sphere 2 remains neutral). Then the switch is closed. How does the charge Q_1 on sphere 1 compare to the charge Q_2 on sphere 2?
ANSWER: Q_1 is greater than Q_2
Click to See Image (picture is probably important)
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: As shown above, sphere 1 and sphere 2 are made of metal and connected together by a wire with a switch. While the switch is open, sphere 1 is given a positive total charge (and sphere 2 remains neutral). Then the switch is closed. How does the electric field E_1 at the surface of sphere 1 compare to the electric field E_2 at the surface of sphere 2?
ANSWER: E_1 is less than E_2
Click to See Image (picture is probably important)
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: The figure above shows four different sections of capacitor circuits. Which two have the same equivalent capacitance?
ANSWER: (a) and (d)
Click to See Image (picture is important)
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: The figure above shows four different sections of capacitor circuits. Which has the smallest equivalent capacitance?
ANSWER: (c)
Click to See Image (picture is important)
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: The figure above shows four different sections of capacitor circuits. Which has the largest equivalent capacitance?
ANSWER: (b)
Click to See Image (picture is important)
Question Type: Inf-Var
Has Picture: No
Question Transcription: How much charge does a 1.50 V battery transfer from the negative to the positive terminal while doing 20.1 J of work?
ANSWER: 13.4 C, the 2nd-biggest number
Click to See Image
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: What is the equivalent value of the capacitance for the figure shown? C_1 = 11.0 uF, C_2 = 13.0 uF, and C_3 = 28.0 uF.
ANSWER: 8.67 uF, the 2nd-biggest number
Click to See Image (picture is important)
These are images collected from trying real questions, including pre-lecture questions. They're meant to be viewed in order, since every image usually contains the [basic] answer key for the previous image's questions. Be careful, any can be incorrect.
T6 other image 1
T6 other image 2
T6 other image 3
T6 other image 4
T6 other image 5
T6 other image 6
T6 other image 7
T6 other image 8
T6 other image 9
T6 other image 10
T6 other image 11
T6 other image 12
T6 other image 13
T6 other image 14
T6 other image 15
T6 other image 16
T6 other image 17
T6 other image 18
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: In the figure provided a wire consists of two segments made from the same material but with different diameters. If the current in segment 1 is I_1 and the current in segment 2 is I_2, which of the following is true?
ANSWER: I_1 is equal to I_2
Click to See Image (picture is probably important)
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: When the switch is open in the circuit above, the battery drives a current I in the direction shown. What happens to the current I through the battery when the switch is closed?
ANSWER: The current I will increase.
Click to See Image (picture is important)
Question Type: Inf-Var
Has Picture: No
Question Transcription: A 9.00 V battery has some internal resistance. When a 24.0 ohm resistor is connected the voltage across the terminals drops to 8.20 V. What is the battery's internal resistance?
ANSWER: 2.34 ohms, the smallest number
Click to See Image
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: What is the value of R_3 in the figure? R_1 = 10.5 ohms, R_2 = 19.1 ohms, delta V = 9.00 V and I = 6.70 A.
ANSWER: 1.68 ohms, the biggest number (**but sometimes the 2nd-biggest number)
Table of different numbers:
11.6 ohms, 16.1 ohms, 6.00 V, 7.80 A: 0.868 ohms (2nd-biggest number) (wrong: 1.15, 0.769, 0.287)
12.4 ohms, 15.9 ohms, 9.00 V, 6.40 A: 1.76 ohms (biggest number) (wrong: 1.41, 0.581, 0.568)
13.0 ohms, 18.9 ohms, 8.00 V, 6.50 A: 1.46 ohms (biggest number) (wrong: 1.23, 0.683, 0.483)
14.4 ohms, 10.8 ohms, 6.00 V, 7.30 A: 0.948 ohms (2nd-biggest number) (wrong: 1.05, 0.822, 0.313)
15.7 ohms, 18.4 ohms, 5.00 V, 5.50 A: 1.02 ohms (biggest number) (wrong: 0.982, 0.909, 0.336)
16.9 ohms, 10.5 ohms, 5.00 V, 6.90 A: 0.816 ohms (2nd-biggest number) (wrong: 1.23, 0.725, 0.269)
17.1 ohms, 11.6 ohms, 5.00 V, 7.70 A: 0.717 ohms (2nd-biggest number) (wrong: 1.40, 0.649, 0.237)
18.3 ohms, 16.1 ohms, 9.00 V, 5.70 A: 1.94 ohms (biggest number) (wrong: 1.58, 0.639, 0.517)
19.8 ohms, 19.0 ohms, 8.00 V, 7.30 A: 1.24 ohms (biggest number) (wrong: 1.10, 0.809, 0.408)
Click to See Image (picture is important)
These are images collected from trying real questions, including pre-lecture questions. They're meant to be viewed in order, since every image usually contains the [basic] answer key for the previous image's questions. Be careful, any can be incorrect.
T7 other image 1
T7 other image 2
T7 other image 3
T7 other image 4
T7 other image 5
T7 other image 6
T7 other image 7
T7 other image 8
T7 other image 9
T7 other image 10
T7 other image 11
T7 other image 12
T7 other image 13
T7 other image 14
T7 other image 15
T7 other image 16
T7 other image 17
T7 other image 18
T7 other image 19
T7 other image 20
T7 other image 21
T7 other image 22
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: In the figure provided, what is the current direction in the wire? . There is not enough information to determine the current direction in the wire. . Up . Down
ANSWER: Down
Click to See Image (picture is important)
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: In the figure provided, for the charged particle entering the magnetic field, what is the initial direction of deflection?
ANSWER: Left
Click to See Image (picture is important)
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: Calculate the magnitude of the magnetic field at point a in the figure. The current in the wires at y = 1.00 cm and y = -1.00 cm is 6.00 A.
ANSWER: 0.000120 T, the 2nd-smallest number
Click to See Image (picture is probably important)
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: Calculate the magnitude of the magnetic field at point b in the figure. The current in the wires at y = 1.00 cm and y = -1.00 cm is 7.00 A.
ANSWER: 0.000280 T, the biggest number
Click to See Image (picture is probably important)
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: Calculate the magnitude of the magnetic field at point c in the figure. The current in the wires at y = 1.00 cm and y = -1.00 cm is 6.00 A.
ANSWER: 0.000120 T, the smallest number
Click to See Image (picture is probably important)
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: A proton is at x = 0.530 cm and is moving to the left with speed 2.40 x 10^6 m/s, as shown above. Point A is located at y = 0.530 cm, point B is at the origin, and point C is at y = -0.530 cm. What is the magnitude of the magnetic field produced by the proton at point A?
ANSWER: 4.83x10^-16 T, into the page. , the 2nd-biggest number [of the *three* non-zero options] & always into the page
Click to See Image (picture is important)
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: A proton is at x = 0.520 cm and is moving to the left with speed 6.50 x 10^6 m/s, as shown above. Point A is located at y = 0.520 cm, point B is at the origin, and point C is at y = -0.520 cm. What is the magnitude of the magnetic field produced by the proton at point B?
ANSWER: 0.00 T, no magnetic field produced. , zero & always no magnetic field produced
Click to See Image (picture is important)
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: A proton is at x = 0.810 cm and is moving to the left with speed 3.80 x 10^6 m/s, as shown above. Point A is located at y = 0.810 cm, point B is at the origin, and point C is at y = -0.810 cm. What is the magnitude of the magnetic field produced by the proton at point C?
ANSWER: 3.28x10^-16 T, out of the page. , the 2nd-biggest number [of the *three* non-zero options] & always out of the page
Click to See Image (picture is important)
Question Type: Inf-Var
Has Picture: No
Question Transcription: Magnetic resonance imaging needs a magnetic field strength of approximately 1.10 T. They use a solenoid that is tightly wound, has a length of 2.60 m, and diameter 71.0 cm. The wire that makes up the solenoid has a diameter of 5.00 mm. To get the necessary magnetic field, what current is required?
ANSWER: 4.38x10^3 A, the smallest number
Click to See Image
These are images collected from trying real questions, including pre-lecture questions. They're meant to be viewed in order, since every image usually contains the [basic] answer key for the previous image's questions. Be careful, any can be incorrect.
T8 other image 1
T8 other image 2
T8 other image 3
T8 other image 4
T8 other image 5
T8 other image 6
T8 other image 7
T8 other image 8
T8 other image 9
T8 other image 10
T8 other image 11
T8 other image 12
T8 other image 13
T8 other image 14
T8 other image 15
T8 other image 16
T8 other image 17
T8 other image 18
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: From the figure provided, what is the direction of the induced current if the bar moves upwards through a constant magnetic field?
ANSWER: Counterclockwise
Click to See Image (picture is important)
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: In the figure provided, a magnetic field is decreasing. What is the direction of the current in the loop of wire?
ANSWER: Counterclockwise
Click to See Image (picture is important)
Question Type: Lim-Var
Has Picture: Yes
Question Transcription: A 6.50 uF capacitor is connected to a 10.0 mH inductor as shown in the circuit above. What happens to the current when the switch is closed?
ANSWER: The current will begin to oscillate in the circuit.
Click to See Image (picture is important)
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: A 5.00 diameter loop with a resistance of 0.500 ohms is in an increasing magnetic field of 1.90 T/s as shown in the image. What is the magnitude and direction of the induced current?
ANSWER: 0.00746 A, counterclockwise , the smaller number & counterclockwise
Click to See Image (picture is important)
Question Type: Inf-Var
Has Picture: Yes
Question Transcription: The loop in the image is moving through the magnetic field, of strength 0.200 T, at a speed of 42.0 m/s. If the resistance in the loop is 0.400 ohms and the width of the wire is x = 3.00 cm, what is the magnitude and direction of the induced current?
ANSWER: 0.630 A, clockwise , the smaller number & clockwise
Click to See Image (picture is probably important)
These are images collected from trying real questions, including pre-lecture questions. They're meant to be viewed in order, since every image usually contains the [basic] answer key for the previous image's questions. Be careful, any can be incorrect.
T9 other image 1
T9 other image 2
T9 other image 3
T9 other image 4
T9 other image 5
T9 other image 6
T9 other image 7
T9 other image 8
T9 other image 9
T9 other image 10
T9 other image 11
T9 other image 12
T9 other image 13
T9 other image 14
T9 other image 15
T9 other image 16
T9 other image 17
T9 other image 18
T9 other image 19
T9 other image 20
T9 other image 21
T9 other image 22
T9 other image 23
These are images collected from trying real questions, including pre-lecture questions. They're meant to be viewed in order, since every image usually contains the [basic] answer key for the previous image's questions. Be careful, any can be incorrect.
T10 other image 1
T10 other image 2
T10 other image 3
T10 other image 4
T10 other image 5
T10 other image 6
T10 other image 7
T10 other image 8
T10 other image 9
T10 other image 10
T10 other image 11
T10 other image 12
T10 other image 13
T10 other image 14
T10 other image 15
T10 other image 16
T10 other image 17
These are images collected from trying real questions, including pre-lecture questions. They're meant to be viewed in order, since every image usually contains the [basic] answer key for the previous image's questions. Be careful, any can be incorrect.
T11 other image 1
T11 other image 2
T11 other image 3
T11 other image 4
T11 other image 5
T11 other image 6
T11 other image 7
T11 other image 8
T11 other image 9
T11 other image 10
T11 other image 11
T11 other image 12
T11 other image 13
T11 other image 14
T11 other image 15
T11 other image 16
T11 other image 17
These are images collected from trying real questions, including pre-lecture questions. They're meant to be viewed in order, since every image usually contains the [basic] answer key for the previous image's questions. Be careful, any can be incorrect.
T12 other image 1
T12 other image 2
T12 other image 3
T12 other image 4
T12 other image 5
T12 other image 6
T12 other image 7
T12 other image 8
There were no practice questions available for these three topics. Sorry!
That's a good question. Unfortunately, in order to provide answers for that course, I would have to find a person who has access to that course on the e-learning platform, and I would need to sit down with them for a good few hours at least to gather the resources necessary to make an answer key. However, I may meet this person someday, so bookmark this page and come back!