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OHM'S LAW QUIZ

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

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

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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.

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A resistor is connected across a 50 V source. What is the current in the resistor if the color code is red, orange, orange, silver?

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

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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?

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When 12 V are applied across a 68 resistor, the current is

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How much current is produced by a voltage of 18 kV across a 15 k resistance?

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

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

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