Question

The magnetic susceptibility of a material of a rod is 499. Permeability in vacuum is 4π × 10^–7 H/m. Absolute permeability of the material of the rod is :

(1) 4π × 10^–4 H/m

(2) 2π × 10^–4 H/m

(3) 3π × 10^–4 H/m

(4) π × 10^–4 H/m

Answer 1

Correct option is (2) 2π × 10^–4 H/m