Question

4. Derive an expression for electric current consumed in a device in
terms of current 1, resistance R, and time t.​

Answer 1

Answer:  W = Q*V ..............(1) where W = Work done, Q = flow of charges and V = potential difference

We also know

Current I = Q/t where Q = flow of charges and t = time

= Q = It............(2)

putting value of Q from equation (2) to (1)

Work done or energy consumed = I*V*t

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