Category: Parallel Circuits

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_____________?

Hamad Parallel Circuits 04/10/2024

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A. 18 W
B. 1.5 W
C. 48 W
D. 72 W

The total resistance of a parallel circuit is 50 Ω. If the total current is 120 mA, the current through the 270 Ω that makes up part of the parallel circuit is approximately_______________?

Hamad Parallel Circuits 11/08/2024

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A. 22 mA
B. 120 mA
C. 220 mA
D. 50 mA

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____________?

Hamad Parallel Circuits 23/01/2024

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A. 200 mA
B. 540 mA
C. 1.24 A
D. 900 mA

Three 47 Ω resistors are connected in parallel across a 110 volt source. The current drawn from the source is approximately_______________?

Hamad Parallel Circuits 27/03/2023

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A. 2.3 A
B. 780 mA
C. 47 mA
D. 7.06 A

The following resistors are in parallel across a voltage source: 220Ω , 470Ω , and 560Ω . The resistor with the least current is______________?

Hamad Parallel Circuits 24/12/2021

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A. 220 Ω
B. 470 Ω
C. 560 Ω
D. impossible to determine without knowing the voltage

There is a total of 800 mA of current into four parallel resistors. The currents through three of the resistors are 40 mA, 70 mA, and 200 mA. The current through the fourth resistor is______________?

Hamad Parallel Circuits 07/12/2021

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A. 490 mA
B. 800 mA
C. 310 mA
D. 0 A

When a 1.6 kΩ resistor and a 120Ω resistor are connected in parallel, the total resistance is____________?

Hamad Parallel Circuits 22/10/2021

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A. greater than 1.6 kΩ
B. greater than 120 but less than 1.6 kΩ
C. less than 120 but greater than 100 Ω
D. less than 100 Ω

A set of Christmas tree lights is connected in parallel across a 110 V source. The filament of each light bulb is 1.8 k. The current through each bulb is approximately___________?

Hamad Parallel Circuits 17/10/2021

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A. 610 mA
B. 18 mA
C. 110 mA
D. 61 mA

Six resistors are in parallel. The two lowest-value resistors are both 1.2 kΩ. The total resistance_____________?

Hamad Parallel Circuits 26/08/2021

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A. is less than 6 kΩ
B. is greater than 1.2 kΩ
C. is less than 1.2 kΩ
D. is less than 600 Ω

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_______________?

Hamad Parallel Circuits 18/07/2021

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A. 48 mA
B. 12 mA
C. 0 A
D. 3 mA