Questions
A varying current in a coil changes from 10 A to zero in 0.5 s. If average e.m.f. induced in the coil is 220 volts, the self-inductance of coil is
detailed solution
Correct option is C
|e|=Ldidt⇒220=L×100.5 ⇒L=11HTalk to our academic expert!
Similar Questions
A coil is wound as a transformer of rectangular cross-section. If all the linear dimensions of the transformer are increased by a factor 2 and the number of turns per unit length of the coil remain the same, the self inductance increased by a factor of
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