Category: Parallel Circuits

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______________?

Hamad Parallel Circuits 30/06/2020

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A. 60 mA
B. 15 mA
C. 135 mA
D. 31.25 mA

Five light bulbs are connected in parallel across 110 V. Each bulb is rated at 200 W. The current through each bulb is approximately___________?

Hamad Parallel Circuits 30/06/2020

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A. 2.2 A
B. 137 mA
C. 1.8 A
D. 9.09 A

The currents into a junction flow along two paths. One current is 4 A and the other is 3 A. The total current out of the junction is_____________?

Hamad Parallel Circuits 22/06/2020

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A. 1 A
B. 7 A
C. unknown
D. the larger of the two

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___________?

Hamad Parallel Circuits 22/06/2020

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A. 55 Ω
B. 5.5 Ω
C. 50 Ω
D. 9 Ω

If there are a total of 120 mA into a parallel circuit consisting of three branches, and two of the branch currents are 40 mA and 10 mA, the third branch current is_________________?

Hamad Parallel Circuits 19/06/2020

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A. 50 mA
B. 70 mA
C. 120 mA
D. 40 mA

If one of the resistors in a parallel circuit is removed, the total resistance_____________?

Hamad Parallel Circuits 31/05/2020

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A. decreases
B. increases
C. remains the same
D. doubles