Current Electricity and Electrical InstrumentHard

Question

A time varying i is speed through a resistance R as shown in figure. The total generated in the resistance is

Options

A.11i02Rt0
B.13i02Rt0
C.17i02Rt0
D.15i02Rt0

Solution

Total heat produced = Rdt + (3i0)2 R(2t0 - t0) + i02R(3t0 - 2t0) = 3i02Rt0 + 9i02Rt0 + i02Rt0 = 13iRt0

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