When the current changes from `+2 A to –2A` in 0.05 second, an e.m.f. of 8 V  is induced in a coil.
Channel: Doubtnut
Date: 2020-08-30

When the current changes from `+2 A to –2A` in 0.05 second, an e.m.f. of 8 V  is induced in a coil. The coefficient of self - induction of the coil is