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Ohm's Law

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

34.4 V
340 V
1.36 V
13.6 V

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Ohm's Law
What is the approximate resistance setting of a rheostat in which 650 mA of current flows with a 150 V source?

230
97
9.7
23

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Ohm's Law
How much voltage is needed to produce 2.5 A of current through a 200 resistor?

80 V
500 V
8 V
50 V

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Ohm's Law
Twelve volts are applied across a resistor. A current of 3 mA is measured. What is the value of the resistor?

400
4 k
4.4
4

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Ohm's Law
An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately

385
38.5
3.1
31

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Ohm's Law
What is the approximate resistance of a rheostat if the voltage source is 18 V and the current is 220 mA?

820
8.2
8.2 k
82

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