A cylinder wire of radius R is carrying uniformly distributed current I over its cross-section.
Channel: Doubtnut
Date: 26/07/2020

A cylinder wire of radius R is carrying uniformly distributed current I over its cross-section. If a circular loop of radius r is taken as amperian loop, then the variation value of `oint vec(B)* Vec(dl)` over this loop with radius 'r' of loop will be best represented by