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Parallel Circuits

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

470
790
30
60

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

25 mA
6.25 mA
200 mA
100 mA

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

remains the same
doubles
increases
decreases

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Parallel Circuits
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

200 mA
540 mA
1.24 A
900 mA

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Parallel Circuits
When an additional resistor is connected across an existing parallel circuit, the total resistance

decreases by the value of the added resistor
remains the same
decreases
increases by the value of the added 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

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

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