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Calculate the amount of heat generated when 7200 coulombs of charge is transferred in one hour through a potential difference of 50 V. |
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Answer» Solution :Q = 7200 C t = 1 h `= 60xx60 = 3600s ` V= 50 V `I = (Q)/(t) = (7200)/(3600) = 2A` `R=(V)/(I) = (50V)/(2A)= 25 Omega` `H = I^(2) Rt ` `= 2xx2xx25xx60xx60` `=36xx10^(4)J ` or 360 kJ. |
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