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23 October, 17:38

In an electrical circuit, the voltage across a resistor is directly proportional to the current (amps) running through the resistor. If a current of 12 amps produced 480 amps volts across a resistor, how many volts would a current of 1.5amps produce across an identical resistor?

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  1. 23 October, 20:29
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    Since it's the same resistor so R is constant

    R = V/I = 480/12=40

    when I = 1.5, V/1.5 = 40, V = 1.5 x 40 = 60 v
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