Questions
When the current changes from + 2 A to - 2A in 0.05 s, an emf of 8 V is induced in a coil. The coefficient of self-induction of the coil is :
detailed solution
Correct option is D
e=-L∆i∆t⇒L=e-∆i/∆tTalk 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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