Q142. The value of permeability of free space is:Physics — Magnetism and Electromagnetic Induction Past Paper — Question 142 of 591A. 10-7T.m.A-1B. 2πx10-7T.m.A-1C. 4πx10-7T.m.A-1D. 4πx107T.m.A-1Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →