A hollow cylindrical conductor of radii a and b carries a current I uniformly spread over
Channel: Doubtnut
Date: 2020-08-02

A hollow cylindrical conductor of radii a and b carries a current I uniformly spread over its cross-section. Prove that the magnetic field induction B for point inside the body of the conductor at a distance r from the axis of cylinder is given by, `B=(mu_0mu_rI(r^2-a^2))/(2pi(b^2-a^2)r)`