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Parallel Circuits

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
Six resistors are in parallel. The two lowest-value resistors are both 1.2 k. The total resistance

is less than 1.2 k
is less than 6 k
is greater than 1.2 k
is less than 600

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

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

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Parallel Circuits
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

61 mA
18 mA
610 mA
110 mA

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

12 W
0.3 W
4.8 W
1.2 W

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Parallel Circuits
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

120 mA
70 mA
40 mA
50 mA

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