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8 October, 22:30

A current of 4A flows in a wire of resistance 60 ohm. calculate electrical energy consumed in 2 min.

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  1. 9 October, 01:00
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    Power dissipated = energy/second = (current) ² x (resistance)

    Power dissipated = energy / second = (4) ² x (60) = 960 joules per second = 960 watts

    Energy = (power) x (time) = (960 watts) x (2 minutes) x (60 sec/minute)

    = 115,200 joules
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