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Parallel Circuits

Parallel Circuits
The power dissipation in each of four parallel branches is 1.2 W. The total power dissipation is

12 W
4.8 W
1.2 W
0.3 W

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

1.8 A
9.09 A
2.2 A
137 mA

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Parallel Circuits
Four 8 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

1.5 W
18 W
48 W
72 W

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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

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

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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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Parallel Circuits
When a 1.6 k resistor and a 120 resistor are connected in parallel, the total resistance is

less than 100
greater than 1.6 k
greater than 120 but less than 1.6 k
less than 120 but greater than 100

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