engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Electromagnetic Theory Magnetostatics Magnetostatic Field
Absolute permeability of a free space is:
1
μ0 = 4π × 10-7 H/m
2
μ0 = 4π × 10-6 H/m
3
μ0 = 4π × 10-7 H/sq-m
4
μ0 = 4π × 10-6 H/sq-m