Question

For driving a current of 2 ampere for 6 minute in a circuit thousand joule of work is to be done the emf of source in the circuit is

Answer 1

Work done W = V I t

Given W = 1000J ; I = 2 A ; t = 360 s

1000 = V (2)(360)

V = 100/72

V = 1.38 Volt

Answer 2

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