1.

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               [MP PMT 1996]

A. 500 seconds
B. 50 seconds
C. 5 seconds
D. 0.5 seconds
Answer» D. 0.5 seconds


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