Questions
Switch s of the circuit, shown in figure, is closed at t = 0. If e denotes the induced emf in L and i, the current flowing through the circuit at time t, which of the following graphs is correct?
detailed solution
Correct option is C
At the time t = 0, e is max and is equal to E, but current i is zero. At time t,i=ER(1-e-RtL) Therefore e =Ldidt=EL e-Rt/L. So e decreases exponentially.Talk to our academic expert!
Similar Questions
In the circuit shown, one of the inductors used is ideal. The potential difference across the batteries is10 V. The current drawn from the battery at steady state, after the switch is closed is
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