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

Sagot :

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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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