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4 February, 07:13

The current in a hair dryer measures 21 amps. The resistance of the hair dryer is 8 ohms. What is the voltage?

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  1. 4 February, 07:41
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    168 Volts

    Explanation:

    Use Ohm's law:

    (Voltage) = (Current) x (Resistance)

    (Voltage) = 21 A * 8 Ohm = 168 V
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