Parallel Circuits MCQ Questions & Answers | Electrical Engineering Page-2 section-1

11.
An ammeter has an internal resistance of 50 Ω. The meter movement itself can handle up to 1 mA. If 10 mA is applied to the meter, the shunt resistor, RSH1, is approximately

A. 55 Ω

B. 5.5 Ω

C. 50 Ω

D. 9 Ω

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12.
In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is

A. 48 mA

B. 12 mA

C. 0 A

D. 3 mA

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13.
Four 8 Ω speakers are connected in parallel to the output of an audio amplifier. If the maximum voltage to the speakers is 12 V, the amplifier must be able to deliver to the speakers

A. 18 W

B. 1.5 W

C. 48 W

D. 72 W

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14.
In a certain three-branch parallel circuit, R1 has 12 mA through it, R2 has 15 mA through it, and R3 has 25 mA through it. After measuring a total of 27 mA, you can say that

A. R3 is open

B. R1 is open

C. R2 is open

D. The circuit is operating properly

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15.
A 470 Ω resistor, a 220 Ω resistor, and a 100 Ω resistor are all in parallel. The total resistance is approximately

A. 790 Ω

B. 470 Ω

C. 60 Ω

D. 30 Ω

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16.
Total power in a parallel circuit is found by adding up the power of all the individual resistors.

A. True

B. False

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17.
Four resistors are connected in parallel. Fifteen mA flows through resistor R. If the second resistor is 2R, the third resistor 3R, and the fourth resistor 4R, the total current in the circuit is

A. 60 mA

B. 15 mA

C. 135 mA

D. 31.25 mA

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18.
The following currents are measured in the same direction in a three-branch parallel circuit: 200 mA, 340 mA, and 700 mA. The value of the current into the junction of these branches is

A. 200 mA

B. 540 mA

C. 1.24 A

D. 900 mA

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19.
Three lights are connected in parallel across a 120 volt source. If one light burns out,

A. The remaining two will glow dimmer

B. The remaining two will glow brighter

C. The remaining two will not light

D. The remaining two will glow with the same brightness as before

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20.
Four resistors of equal value are connected in parallel. If the total voltage is 15 V and the total resistance is 600 Ω, the current through each parallel resistor is

A. 25 mA

B. 100 mA

C. 6.25 mA

D. 200 mA

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Parallel Circuits MCQ Questions & Answers | Electrical Engineering

11. An ammeter has an internal resistance of 50 Ω. The meter movement itself can handle up to 1 mA. If 10 mA is applied to the meter, the shunt resistor, RSH1, is approximately

Answer & Solution

12. In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is

Answer & Solution

13. Four 8 Ω speakers are connected in parallel to the output of an audio amplifier. If the maximum voltage to the speakers is 12 V, the amplifier must be able to deliver to the speakers

Answer & Solution

14. In a certain three-branch parallel circuit, R1 has 12 mA through it, R2 has 15 mA through it, and R3 has 25 mA through it. After measuring a total of 27 mA, you can say that

Answer & Solution

15. A 470 Ω resistor, a 220 Ω resistor, and a 100 Ω resistor are all in parallel. The total resistance is approximately

Answer & Solution

16. Total power in a parallel circuit is found by adding up the power of all the individual resistors.

Answer & Solution

17. Four resistors are connected in parallel. Fifteen mA flows through resistor R. If the second resistor is 2R, the third resistor 3R, and the fourth resistor 4R, the total current in the circuit is

Answer & Solution

18. The following currents are measured in the same direction in a three-branch parallel circuit: 200 mA, 340 mA, and 700 mA. The value of the current into the junction of these branches is

Answer & Solution

19. Three lights are connected in parallel across a 120 volt source. If one light burns out,

Answer & Solution

20. Four resistors of equal value are connected in parallel. If the total voltage is 15 V and the total resistance is 600 Ω, the current through each parallel resistor is

Answer & Solution

11.
An ammeter has an internal resistance of 50 Ω. The meter movement itself can handle up to 1 mA. If 10 mA is applied to the meter, the shunt resistor, RSH1, is approximately

12.
In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is

13.
Four 8 Ω speakers are connected in parallel to the output of an audio amplifier. If the maximum voltage to the speakers is 12 V, the amplifier must be able to deliver to the speakers

14.
In a certain three-branch parallel circuit, R1 has 12 mA through it, R2 has 15 mA through it, and R3 has 25 mA through it. After measuring a total of 27 mA, you can say that

15.
A 470 Ω resistor, a 220 Ω resistor, and a 100 Ω resistor are all in parallel. The total resistance is approximately

16.
Total power in a parallel circuit is found by adding up the power of all the individual resistors.

17.
Four resistors are connected in parallel. Fifteen mA flows through resistor R. If the second resistor is 2R, the third resistor 3R, and the fourth resistor 4R, the total current in the circuit is

18.
The following currents are measured in the same direction in a three-branch parallel circuit: 200 mA, 340 mA, and 700 mA. The value of the current into the junction of these branches is

19.
Three lights are connected in parallel across a 120 volt source. If one light burns out,

20.
Four resistors of equal value are connected in parallel. If the total voltage is 15 V and the total resistance is 600 Ω, the current through each parallel resistor is