Questions
A coil of self-inductance 50 henry is joined to the terminals of a battery of e.m.f. 2 volts through a resistance of 10 ohm and a steady current is flowing through the circuit. If the battery is now disconnected, the time in which the current will decay to 1/e of its steady value is
detailed solution
Correct option is C
Time in which the current will decay to 1e of its steady value is t=τ=LR=5010=5 sTalk to our academic expert!
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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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