Questions
An inductance L and a resistance R are first connected to a battery. After some time the battery is disconnected but L and R remain connected in a closed circuit. Then the current reduces to 37% of its initial value in time
detailed solution
Correct option is C
When battery disconnected current through the circuit start decreasing exponentially according to i=i0e-Rt/Ḷ⇒0.37i0=i0e-Rt/L⇒0.37=1e=e-Rt/L⇒t=LRTalk to our academic expert!
Similar Questions
In the circuit shown, sliding contact is moving with uniform velocity towards right. Its value at some instance is . The current in the circuit at this instant of time will be
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