Question 1

Resistors in combination: In the circuit shown in the figure, four identical resistors labeled A to D are connected to a battery as shown. S1 and S2 are switches. Which of the following actions would result in the GREATEST amount of current through resistor A? 1 and S2 are switches. Which of the following actions would result in the GREATEST amount of current through resistor A?   A)  closing both switches B)  closing S1 only C)  closing S2 only D)  leaving both switches open as shown." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   closing both switches
B)   closing S1 only
C)   closing S2 only
D)   leaving both switches open as shown.E) All of the above
F) B) and D)

Question 2

Kirchhoff's rules: A multiloop circuit is shown in the figure. Some circuit quantities are not labeled. It is not necessary to solve the entire circuit. The current I2 is closest to 2 is closest to   A)  +0.1 A. B)  +0.3 A. C)  +0.5 A. D)  -0.1 A. E)  -0.3 A." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   +0.1 A.
B)   +0.3 A.
C)   +0.5 A.
D)   -0.1 A.
E)   -0.3 A.F) B) and E)
G) C) and E)

Question 3

Kirchhoff's rules: For the circuit shown in the figure, what is the current through resistor R3? 3?   A)  0.043 A B)  1.5 A C)  0.028 A D)  0.086 A" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   0.043 A
B)   1.5 A
C)   0.028 A
D)   0.086 AE) C) and D)
F) All of the above

Question 4

RC circuits: A light bulb is connected in the circuit shown in the figure with the switch S open and the capacitor uncharged. The battery has no appreciable internal resistance. Which one of the following graphs best describes the brightness B of the bulb as a function of time t after closing the switch?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   5F) C) and D)
G) None of the above

Question 5

Meters: A galvanometer has an internal resistance of 100 Ω and deflects full-scale at 2.00 mA. What size resistor should be added to the galvanometer to convert it to a milliammeter capable of reading up to 4.00 mA, and how should this resistor be connected to the galvanometer?

Accepted Answer

A)   50.0 Ω in series with the galvanometer
B)   50.0 Ω in parallel with the galvanometer
C)   75.0 Ω in parallel with the galvanometer
D)   100 Ω in series with the galvanometer
E)   100 Ω in parallel with the galvanometerF) B) and E)
G) B) and C)

Question 6

Kirchhoff's rules: A multiloop circuit is shown in the figure. It is not necessary to solve the entire circuit. Compared to the polarity shown in the figure, the emf ε1 is closest to 1 is closest to   A)  -5 V. B)  5 V. C)  45 V. D)  51 V. E)  -51 V." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   -5 V.
B)   5 V.
C)   45 V.
D)   51 V.
E)   -51 V.F) B) and E)
G) D) and E)

Question 7

Resistors in combination: For the circuit shown in the figure, determine the current in
(a) the 1.0-Ω resistor.
(b) the 3.0-Ω resistor.
(c) the 4.0-Ω resistor.

Accepted Answer

(a) 2.8 A ...

Question 8

Kirchhoff's rules: For the circuit shown in the figure, what current does the ideal ammeter read?

Accepted Answer

A)   0.033 A
B)   0.078 A
C)   0.23 A
D)   0.12 AE) B) and C)
F) None of the above

Question 9

RC circuits: For the circuit shown in the figure, the switch S is initially open and the capacitor is uncharged. The switch is then closed at time t = 0. How many seconds after closing the switch will the energy stored in the capacitor be equal to 50.2 mJ?

Accepted Answer

A)   81 s
B)   65 s
C)   97 s
D)   110 s
E)   130 sF) A) and E)
G) A) and D)

Question 10

Resistors in combination: For the circuit shown in the figure, I = 0.50 A and R = 12 Ω. What is the value of the emf ε?

Accepted Answer

A)   18 V
B)   24 V
C)   6.0 V
D)   12 V
E)   48 VF) A) and D)
G) A) and C)

Question 11

Kirchhoff's rules: A multiloop circuit is shown in the figure. Some circuit quantities are not labeled. It is not necessary to solve the entire circuit. The current I1 is closest to 1 is closest to   A)  zero. B)  +0.2 A. C)  +0.4 A. D)  -0.2 A. E)  -0.4 A." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   zero.
B)   +0.2 A.
C)   +0.4 A.
D)   -0.2 A.
E)   -0.4 A.F) B) and D)
G) B) and C)

Question 12

Meters: A galvanometer has an internal resistance of 100 Ω and deflects full-scale at a current of 2.00 mA. What size resistor should be added to it to convert it to a millivoltmeter capable of reading up to 400 mV, and how should this resistor be connected to the galvanometer?

Accepted Answer

A)   50.0 Ω in series with the galvanometer
B)   50.0 Ω in parallel with the galvanometer
C)   75.0 Ω in parallel with the galvanometer
D)   100 Ω in series with the galvanometer
E)   100 Ω in parallel with the galvanometerF) A) and E)
G) B) and E)

Question 13

Meters: A galvanometer has a coil with a resistance of 24.0 Ω, and a current of 180 μA causes it to deflect full scale. If this galvanometer is to be used to construct an ammeter that can read up to 10.0 A, what shunt resistor is required?

Accepted Answer

A)   123 µΩ
B)   234 µΩ
C)   342 µΩ
D)   432 µΩ
E)   423 µΩF) B) and D)
G) C) and D)

Question 14

Resistors in combination: As more resistors are added in parallel across a constant voltage source, the power supplied by the source

Accepted Answer

A)   increases.
B)   decreases.
C)   does not change.D) A) and B)
E) A) and C)

Exam 22: Gausss Law

Resistors in combination: For the circuit shown in the figure, determine the current in (a) the 1.0-Ω resistor. (b) the 3.0-Ω resistor. (c) the 4.0-Ω resistor.

Correct Answer
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(a) 2.8 A ...
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Kirchhoff's rules: A multiloop circuit is shown in the figure. Some circuit quantities are not labeled. It is not necessary to solve the entire circuit. The current I₁ is closest to

Correct Answer
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Kirchhoff's rules: For the circuit shown in the figure, what is the current through resistor R₃?

Correct Answer
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Resistors in combination: For the circuit shown in the figure, I = 0.50 A and R = 12 Ω. What is the value of the emf ε?

Correct Answer
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Meters: A galvanometer has a coil with a resistance of 24.0 Ω, and a current of 180 μA causes it to deflect full scale. If this galvanometer is to be used to construct an ammeter that can read up to 10.0 A, what shunt resistor is required?

Correct Answer
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Kirchhoff's rules: A multiloop circuit is shown in the figure. Some circuit quantities are not labeled. It is not necessary to solve the entire circuit. The current I₂ is closest to

Correct Answer
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Resistors in combination: In the circuit shown in the figure, four identical resistors labeled A to D are connected to a battery as shown. S₁ and S₂ are switches. Which of the following actions would result in the GREATEST amount of current through resistor A?

Correct Answer
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Meters: A galvanometer has an internal resistance of 100 Ω and deflects full-scale at 2.00 mA. What size resistor should be added to the galvanometer to convert it to a milliammeter capable of reading up to 4.00 mA, and how should this resistor be connected to the galvanometer?

Correct Answer
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Meters: A galvanometer has an internal resistance of 100 Ω and deflects full-scale at a current of 2.00 mA. What size resistor should be added to it to convert it to a millivoltmeter capable of reading up to 400 mV, and how should this resistor be connected to the galvanometer?

Correct Answer
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RC circuits: For the circuit shown in the figure, the switch S is initially open and the capacitor is uncharged. The switch is then closed at time t = 0. How many seconds after closing the switch will the energy stored in the capacitor be equal to 50.2 mJ?

Correct Answer
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Kirchhoff's rules: For the circuit shown in the figure, what current does the ideal ammeter read?

Correct Answer
verified

Correct Answer
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Kirchhoff's rules: A multiloop circuit is shown in the figure. It is not necessary to solve the entire circuit. Compared to the polarity shown in the figure, the emf ε₁is closest to

Correct Answer
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Resistors in combination: As more resistors are added in parallel across a constant voltage source, the power supplied by the source

Correct Answer
verified

Exam 22: Gausss Law

Resistors in combination: For the circuit shown in the figure, determine the current in (a) the 1.0-Ω resistor. (b) the 3.0-Ω resistor. (c) the 4.0-Ω resistor.

Correct Answerverified(a) 2.8 A ...View AnswerShow Answer

Kirchhoff's rules: A multiloop circuit is shown in the figure. Some circuit quantities are not labeled. It is not necessary to solve the entire circuit. The current I1 is closest to

Correct AnswerverifiedShow Answer

Kirchhoff's rules: For the circuit shown in the figure, what is the current through resistor R3?

Correct AnswerverifiedShow Answer

Resistors in combination: For the circuit shown in the figure, I = 0.50 A and R = 12 Ω. What is the value of the emf ε?

Correct AnswerverifiedShow Answer

Meters: A galvanometer has a coil with a resistance of 24.0 Ω, and a current of 180 μA causes it to deflect full scale. If this galvanometer is to be used to construct an ammeter that can read up to 10.0 A, what shunt resistor is required?

Correct AnswerverifiedShow Answer

Kirchhoff's rules: A multiloop circuit is shown in the figure. Some circuit quantities are not labeled. It is not necessary to solve the entire circuit. The current I2 is closest to

Correct AnswerverifiedShow Answer

Resistors in combination: In the circuit shown in the figure, four identical resistors labeled A to D are connected to a battery as shown. S1 and S2 are switches. Which of the following actions would result in the GREATEST amount of current through resistor A?

Correct AnswerverifiedShow Answer

Meters: A galvanometer has an internal resistance of 100 Ω and deflects full-scale at 2.00 mA. What size resistor should be added to the galvanometer to convert it to a milliammeter capable of reading up to 4.00 mA, and how should this resistor be connected to the galvanometer?

Correct AnswerverifiedShow Answer

Meters: A galvanometer has an internal resistance of 100 Ω and deflects full-scale at a current of 2.00 mA. What size resistor should be added to it to convert it to a millivoltmeter capable of reading up to 400 mV, and how should this resistor be connected to the galvanometer?

Correct AnswerverifiedShow Answer

RC circuits: For the circuit shown in the figure, the switch S is initially open and the capacitor is uncharged. The switch is then closed at time t = 0. How many seconds after closing the switch will the energy stored in the capacitor be equal to 50.2 mJ?

Correct AnswerverifiedShow Answer

Kirchhoff's rules: For the circuit shown in the figure, what current does the ideal ammeter read?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Kirchhoff's rules: A multiloop circuit is shown in the figure. It is not necessary to solve the entire circuit. Compared to the polarity shown in the figure, the emf ε1 is closest to

Correct AnswerverifiedShow Answer

Resistors in combination: As more resistors are added in parallel across a constant voltage source, the power supplied by the source

Correct AnswerverifiedShow Answer

Correct Answer
verified
(a) 2.8 A ...
View Answer

Kirchhoff's rules: A multiloop circuit is shown in the figure. Some circuit quantities are not labeled. It is not necessary to solve the entire circuit. The current I₁ is closest to

Correct Answer
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Kirchhoff's rules: For the circuit shown in the figure, what is the current through resistor R₃?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Kirchhoff's rules: A multiloop circuit is shown in the figure. Some circuit quantities are not labeled. It is not necessary to solve the entire circuit. The current I₂ is closest to

Correct Answer
verified

Resistors in combination: In the circuit shown in the figure, four identical resistors labeled A to D are connected to a battery as shown. S₁ and S₂ are switches. Which of the following actions would result in the GREATEST amount of current through resistor A?

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Kirchhoff's rules: A multiloop circuit is shown in the figure. It is not necessary to solve the entire circuit. Compared to the polarity shown in the figure, the emf ε₁is closest to

Correct Answer
verified

Correct Answer
verified