Question 1

For the circuit shown in the figure, R1 = 18 ?, R2 = 44 ?, R3 = 33 ?, R4 = 14 ?, R5 = 12 ?, V1 = 18 V, V2 = 12 V, and the batteries are ideal. Determine I1 and I2.

Accepted Answer

I₁ = 0.25 A...

Question 2

A 22-A current flows into a parallel combination of 4.0-Ω, 6.0-Ω, and 12-Ω resistors. What current flows through the 12-Ω resistor?

Accepted Answer

A)  18 A
B)  11 A
C)  7.3 A
D)  3.7 A

Question 3

Five 2.0-Ω resistors are connected as shown in the figure. What is the equivalent resistance of this combination between points a and b?

Accepted Answer

A)  1.0 Ω
B)  10.0 Ω
C)  2.0 Ω
D)  6.0 Ω
E)  0.40 Ω

Question 4

A multiloop circuit is shown in the figure. Find the current I2 if the batteries are ideal. (It is not necessary to solve the entire circuit.)  2 if the batteries are ideal. (It is not necessary to solve the entire circuit.)    A) -3 A B) 3 A C) 7 A D) -7 A E) 0 A" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  -3 A
B)  3 A
C)  7 A
D)  -7 A
E)  0 A

Question 5

If V = 20 V and the battery is ideal, what is the current through R3 in the figure? 3 in the figure?   A) 0.050 A B) 0.20 A C) 1.0 A D) 4.0 A" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  0.050 A
B)  0.20 A
C)  1.0 A
D)  4.0 A

Question 6

The capacitive network shown in the figure is assembled with initially uncharged capacitors. Assume that all the quantities in the figure are accurate to two significant figures. The switch S in the network is kept open throughout. What is the total energy stored in the seven capacitors?

Accepted Answer

A)  48 mJ
B)  72 mJ
C)  96 mJ
D)  120 mJ
E)  144 mJ

Question 7

An ideal 10.0-V dc is connected across a  590.0−Ω590.0 - \Omega590.0−Ω  resistor in series with an  840,0−Ω840,0 - \Omega840,0−Ω  resistor. What is the potential drop across the  590.0Ω590.0 \Omega590.0Ω  resistor?

Accepted Answer

A)  4.1 V
B)  5.9 V
C)  14 V
D)  7.0 V

Question 8

A capacitor C is connected in series with a resistor R across a battery and an open switch. If a second capacitor of capacitance 2C is connected in parallel with the first one, the time constant of the new RC circuit will be

Accepted Answer

A)  the same as before.
B)  twice as large as before.
C)  three times a large as before.
D)  one-half as large as before.
E)  one-fourth as large as before.

Question 9

The capacitor shown in the circuit in the figure is initially uncharged when the switch S is suddenly closed, and the battery is ideal. After one time constant has gone by, find (a)the current through the resistor and (b)the charge on the capacitor. Assume that the numbers shown are all accurate to two significant figures.

Accepted Answer

The answer of The capacitor shown in the circuit in...

Question 10

An ideal 100-V dc battery is applied across a series combination of four resistors having resistances of 20 Ω, 40 Ω, 60 Ω, and 80 Ω. What is the potential difference across the 40-Ω resistor?

Accepted Answer

A)  20 V
B)  40 V
C)  60 V
D)  80 V
E)  100 V

Question 11

A 5-µF, a 7-µF, and an unknown capacitor CX are connected in parallel between points a and b as shown in the figure. What do you know about the equivalent capacitance Cab between a and b? (There could be more than one correct choice.)  X are connected in parallel between points a and b as shown in the figure. What do you know about the equivalent capacitance Cab between a and b? (There could be more than one correct choice.)    A) Cab > 12 µF B) Cab > CX C) 5 µF ab ab ab X" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  Cab > 12 µF
B)  Cab > CX
C)  5 µF ab 
D)  Cab 
E)  Cab X

Question 12

For the circuit shown in the figure, V = 60 V, C = 20 µF, R = 0.10 MΩ, and the battery is ideal. Initially the switch S is open and the capacitor is uncharged. The switch is then closed at time t = 0.00 s. What is the charge on the capacitor 8.0 s after closing the switch?

Accepted Answer

A)  1200 µC
B)  940 µC
C)  1400 µC
D)  1600 µC
E)  1900 µC

Question 13

Three capacitors of equal capacitance are arranged as shown in the figure, with a voltage source across the combination. If the voltage drop across C1 is  10.0 V10.0 \mathrm {~V}10.0 V  what is the voltage drop across  C3?C _ { 3 } ?C3​?  1 is  10.0 \mathrm {~V}  what is the voltage drop across  C _ { 3 } ?    A) 20 V B) 10.0 V C) 40 V D) 30 V " class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  20 V
B)  10.0 V
C)  40 V
D)  30 V

Question 14

You obtain a 100-W light bulb and a 50-W light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. If each one is an incandescent bulb of fixed resistance, which statement about these bulbs is correct?

Accepted Answer

A)  Both bulbs glow with the same brightness, but less than their normal brightness.
B)  Both bulbs glow with the same brightness, but more than their normal brightness.
C)  The 100-W bulb glows brighter than the 50-W bulb.
D)  The 50-W bulb glows more brightly than the 100-W bulb.

Question 15

Determine the current in the 12-Ω resistor for the circuit shown in the figure assuming that the batteries are ideal.

Accepted Answer

A)  0.25 A
B)  0.50 A
C)  0.75 A
D)  1.0 A

Question 16

For the circuit shown in the figure, R1 = 5.6 Ω, R2 = 5.6 Ω, R3 = 14 Ω, and ε = 6.0 V, and the battery is ideal.
(a)What is the equivalent resistance across the battery?
(b)Find the current through each resistor.

Accepted Answer

(a)9.6 Ω (...

Question 17

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)  increases for a time and then starts to decrease.

Question 18

A 5.0-μF, a 14-μF, and a 21-μF capacitor are connected in series. How much capacitance would a single capacitor need to have to replace the three capacitors?

Accepted Answer

A)  40 μF
B)  3.6 μF
C)  2.0 μF
D)  3.1 μF

Question 19

The following three appliances are connected in parallel across an ideal 120-V dc power source: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same time what total current would they draw from the source?

Accepted Answer

A)  4.0 A
B)  5.0 A
C)  10 A
D)  20 A

Question 20

If V = 40 V and the battery is ideal, what is the potential difference across R1 in the figure? 1 in the figure?   A) 6.7 V B) 8.0 V C) 10 V D) 20 V" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  6.7 V
B)  8.0 V
C)  10 V
D)  20 V

Exam 23: Circuits

For the circuit shown in the figure, R₁ = 18 ?, R₂ = 44 ?, R₃ = 33 ?, R₄ = 14 ?, R₅ = 12 ?, V₁= 18V, V₂ = 12 V, and the batteries are ideal. Determine I₁ and I₂.

Correct Answer
verified
I₁ = 0.25 A...
View Answer

A 22-A current flows into a parallel combination of 4.0-Ω, 6.0-Ω, and 12-Ω resistors. What current flows through the 12-Ω resistor?

Correct Answer
verified

The capacitive network shown in the figure is assembled with initially uncharged capacitors. Assume that all the quantities in the figure are accurate to two significant figures. The switch S in the network is kept open throughout. What is the total energy stored in the seven capacitors?

Correct Answer
verified

Determine the current in the 12-Ω resistor for the circuit shown in the figure assuming that the batteries are ideal.

Correct Answer
verified

For the circuit shown in the figure, V = 60 V, C = 20 µF, R = 0.10 MΩ, and the battery is ideal. Initially the switch S is open and the capacitor is uncharged. The switch is then closed at time t = 0.00 s. What is the charge on the capacitor 8.0 s after closing the switch?

Correct Answer
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Correct Answer
verified

An ideal 10.0-V dc is connected across a $590.0 - \Omega$ resistor in series with an $840,0 - \Omega$ resistor. What is the potential drop across the $590.0 \Omega$ resistor?

Correct Answer
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If V = 20 V and the battery is ideal, what is the current through R₃ in the figure?

Correct Answer
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Correct Answer
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A 5.0-μF, a 14-μF, and a 21-μF capacitor are connected in series. How much capacitance would a single capacitor need to have to replace the three capacitors?

Correct Answer
verified

The following three appliances are connected in parallel across an ideal 120-V dc power source: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same time what total current would they draw from the source?

Correct Answer
verified

An ideal 100-V dc battery is applied across a series combination of four resistors having resistances of 20 Ω, 40 Ω, 60 Ω, and 80 Ω. What is the potential difference across the 40-Ω resistor?

Correct Answer
verified

A 5-µF, a 7-µF, and an unknown capacitor C_X are connected in parallel between points a and b as shown in the figure. What do you know about the equivalent capacitance C_ab between a and b? (There could be more than one correct choice.)

Correct Answer
verified

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

Correct Answer
verified

Five 2.0-Ω resistors are connected as shown in the figure. What is the equivalent resistance of this combination between points a and b?

Correct Answer
verified

For the circuit shown in the figure, R₁ = 5.6 Ω, R₂ = 5.6 Ω, R₃ = 14 Ω, and ε = 6.0 V, and the battery is ideal. (a)What is the equivalent resistance across the battery? (b)Find the current through each resistor.

Correct Answer
verified
(a)9.6 Ω (...
View Answer

A multiloop circuit is shown in the figure. Find the current I₂if the batteries are ideal. (It is not necessary to solve the entire circuit.)

Correct Answer
verified

You obtain a 100-W light bulb and a 50-W light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. If each one is an incandescent bulb of fixed resistance, which statement about these bulbs is correct?

Correct Answer
verified

If V = 40 V and the battery is ideal, what is the potential difference across R₁ in the figure?

Correct Answer
verified

A capacitor C is connected in series with a resistor R across a battery and an open switch. If a second capacitor of capacitance 2C is connected in parallel with the first one, the time constant of the new RC circuit will be

Correct Answer
verified

Exam 23: Circuits

For the circuit shown in the figure, R1 = 18 ?, R2 = 44 ?, R3 = 33 ?, R4 = 14 ?, R5 = 12 ?, V1 = 18 V, V2 = 12 V, and the batteries are ideal. Determine I1 and I2.

Correct AnswerverifiedI1 = 0.25 A...View AnswerShow Answer

A 22-A current flows into a parallel combination of 4.0-Ω, 6.0-Ω, and 12-Ω resistors. What current flows through the 12-Ω resistor?

Correct AnswerverifiedShow Answer

The capacitive network shown in the figure is assembled with initially uncharged capacitors. Assume that all the quantities in the figure are accurate to two significant figures. The switch S in the network is kept open throughout. What is the total energy stored in the seven capacitors?

Correct AnswerverifiedShow Answer

Determine the current in the 12-Ω resistor for the circuit shown in the figure assuming that the batteries are ideal.

Correct AnswerverifiedShow Answer

For the circuit shown in the figure, V = 60 V, C = 20 µF, R = 0.10 MΩ, and the battery is ideal. Initially the switch S is open and the capacitor is uncharged. The switch is then closed at time t = 0.00 s. What is the charge on the capacitor 8.0 s after closing the switch?

Correct AnswerverifiedShow Answer

Three capacitors of equal capacitance are arranged as shown in the figure, with a voltage source across the combination. If the voltage drop across C1 is 10.0 V10.0 \mathrm {~V}10.0 V what is the voltage drop across C3?C _ { 3 } ?C3​?

Correct AnswerverifiedShow Answer

An ideal 10.0-V dc is connected across a 590.0−Ω590.0 - \Omega590.0−Ω resistor in series with an 840,0−Ω840,0 - \Omega840,0−Ω resistor. What is the potential drop across the 590.0Ω590.0 \Omega590.0Ω resistor?

Correct AnswerverifiedShow Answer

If V = 20 V and the battery is ideal, what is the current through R3 in the figure?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A 5.0-μF, a 14-μF, and a 21-μF capacitor are connected in series. How much capacitance would a single capacitor need to have to replace the three capacitors?

Correct AnswerverifiedShow Answer

The following three appliances are connected in parallel across an ideal 120-V dc power source: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same time what total current would they draw from the source?

Correct AnswerverifiedShow Answer

An ideal 100-V dc battery is applied across a series combination of four resistors having resistances of 20 Ω, 40 Ω, 60 Ω, and 80 Ω. What is the potential difference across the 40-Ω resistor?

Correct AnswerverifiedShow Answer

A 5-µF, a 7-µF, and an unknown capacitor CX are connected in parallel between points a and b as shown in the figure. What do you know about the equivalent capacitance Cab between a and b? (There could be more than one correct choice.)

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Five 2.0-Ω resistors are connected as shown in the figure. What is the equivalent resistance of this combination between points a and b?

Correct AnswerverifiedShow Answer

For the circuit shown in the figure, R1 = 5.6 Ω, R2 = 5.6 Ω, R3 = 14 Ω, and ε = 6.0 V, and the battery is ideal. (a)What is the equivalent resistance across the battery? (b)Find the current through each resistor.

Correct Answerverified(a)9.6 Ω (...View AnswerShow Answer

A multiloop circuit is shown in the figure. Find the current I2 if the batteries are ideal. (It is not necessary to solve the entire circuit.)

Correct AnswerverifiedShow Answer

You obtain a 100-W light bulb and a 50-W light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. If each one is an incandescent bulb of fixed resistance, which statement about these bulbs is correct?

Correct AnswerverifiedShow Answer

If V = 40 V and the battery is ideal, what is the potential difference across R1 in the figure?

Correct AnswerverifiedShow Answer

A capacitor C is connected in series with a resistor R across a battery and an open switch. If a second capacitor of capacitance 2C is connected in parallel with the first one, the time constant of the new RC circuit will be

Correct AnswerverifiedShow Answer

For the circuit shown in the figure, R₁ = 18 ?, R₂ = 44 ?, R₃ = 33 ?, R₄ = 14 ?, R₅ = 12 ?, V₁= 18V, V₂ = 12 V, and the batteries are ideal. Determine I₁ and I₂.

Correct Answer
verified
I₁ = 0.25 A...
View Answer

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
verified

An ideal 10.0-V dc is connected across a $590.0 - \Omega$ resistor in series with an $840,0 - \Omega$ resistor. What is the potential drop across the $590.0 \Omega$ resistor?

Correct Answer
verified

If V = 20 V and the battery is ideal, what is the current through R₃ in the figure?

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

A 5-µF, a 7-µF, and an unknown capacitor C_X are connected in parallel between points a and b as shown in the figure. What do you know about the equivalent capacitance C_ab between a and b? (There could be more than one correct choice.)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

For the circuit shown in the figure, R₁ = 5.6 Ω, R₂ = 5.6 Ω, R₃ = 14 Ω, and ε = 6.0 V, and the battery is ideal. (a)What is the equivalent resistance across the battery? (b)Find the current through each resistor.

Correct Answer
verified
(a)9.6 Ω (...
View Answer

A multiloop circuit is shown in the figure. Find the current I₂if the batteries are ideal. (It is not necessary to solve the entire circuit.)

Correct Answer
verified

Correct Answer
verified

If V = 40 V and the battery is ideal, what is the potential difference across R₁ in the figure?

Correct Answer
verified

Correct Answer
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