A closely wound coil of `100` turns and area of cross-section `1cm^(3)` has a coefficient of self-
Channel: Doubtnut
Date: 2020-01-19

A closely wound coil of `100` turns and area of cross-section `1cm^(3)` has a coefficient of self-induction `1 mH`. The magnetic induction in the centre of the core of the coil when a current of `2A` flows in it, will be