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Parallel Circuits

Parallel Circuits
Three 47 resistors are connected in parallel across a 110 volt source. The current drawn from the source is approximately

7.06 A
47 mA
2.3 A
780 mA

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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

60 mA
15 mA
135 mA
31.25 mA

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Parallel Circuits
A sudden increase in the total current into a parallel circuit may indicate

an increase in source voltage
either a drop in source voltage or an open resistor
a drop in source voltage
an open resistor

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Parallel Circuits
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

R3 is open
R2 is open
the circuit is operating properly
R1 is open

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Parallel Circuits
If one of the resistors in a parallel circuit is removed, the total resistance

remains the same
increases
decreases
doubles

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

the remaining two will glow brighter
the remaining two will glow dimmer
the remaining two will glow with the same brightness as before
the remaining two will not light

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