NEET Class neet Answered
please answer this
Asked by Prashant DIGHE | 09 Mar, 2020, 09:54: PM
Expert Answer
Current in RC circuit , I = ( E/R ) e-t/(RC) .....................(1)
Where E is emf of battery and R is resistance in charging circuit
Power delivered by battery , P = (E2/ R ) e-t/(RC)
maximum power Pmax = ( E2 / R ) at t = 0
if power P = (1/2) Pmax at time τ , then we have , (1/2) = e-τ/(RC)
from above eqn., we get τ = ln(2) RC = 0.69 RC
Answered by Thiyagarajan K | 10 Mar, 2020, 09:08: AM
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