Q. Relative permeability of iron is 5500, then it magnetic susceptibility will be
A) $5500 \times 10^{7}$
B) $5500 \times 10^{- 7}$
C) 5501
D) 5499
Explanation
(d) $\chi_{m} = \left( \mu_{r} - 1 \right) \Rightarrow \chi_{m} = (5500 - 1) = 5499$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.