Hundred kilo joules of energy flows in one minute forty seconds in an electric device of resistance forty ohms calculate the potential difference at the end of the device
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7
Energy = (V²/R)t
therefore,
100000 = (V²/40)×40
=> V² = 100000
=> V = √100000 = 100√10 volts
therefore,
100000 = (V²/40)×40
=> V² = 100000
=> V = √100000 = 100√10 volts
Answered by
0
Energy =(v²/R) t
100000= (v²/40)40
v²=10000
v = √100000
v=100√10
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