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11 February, 21:51

How many amps does a 60 watt light bulb use when it's powered by 120 volts

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  1. 11 February, 23:41
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    Power = (voltage) x (current)

    Divide each side by 'voltage': Current = power / voltage

    = (60 watts) / (120 volts) = 0.5 ampere
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