A square loop of wire of edge a carries a current `i`.   Magnetic induction `B`
Channel: Doubtnut
Date: 19/04/2020

A square loop of wire of edge a carries a current `i`.   Magnetic induction `B` for a point on the axis of the loop at a distance `x=a/sqrt2` from its centre is `(Nmu_(0)i)/(3pia)`,then find value of `N B=(4mu_(0)ia^(2))/(pi(4x^(2)+a^(2))(4x^(2)+2a^(2))^(1//2))`