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Ohm's Law

Ohm's Law
What is the voltage source for a circuit carrying 2 A of current through a 36 resistor?

72 V
7.2 V
18 V
1.8 V

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Ohm's Law
What is the approximate filament resistance of a light bulb if it operates from a 110 V source and 0.6 A of current is flowing?

18.3
66
183
6.6

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Ohm's Law
How much resistance is needed to draw 17.6 mA from a 12 volt source?

68
6.8 k
212
680

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Ohm's Law
Approximately how many milliamperes of current flow through a circuit with a 40 V source and 6.8 k of resistance?

59 mA
27.2 mA
5.9 mA
590 mA

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Ohm's Law
A 120 V lamp-dimming circuit is controlled by a rheostat and protected from excessive current by a 3 A fuse. To what minimum resistance value can the rheostat be set without blowing the fuse? Assume a lamp resistance of 20 ohms.

40
4
2
20

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Ohm's Law
A current of 200 µA through a 6.8 k resistor produces a voltage drop of

34.4 V
1.36 V
340 V
13.6 V

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