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22 May, 11:16

A 12V battery runs a 30 amp car stereo. What is the resistance of the circuit?

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  1. 22 May, 12:06
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    So to find R (resistance) you do ohm's law E (volts) over I (current) to find R

    So this is 12/30 = 0.4 so the resistance is 0.4
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