Q. The basic magnetization curve for a ferromagnetic material is shown in figure. Then, the value of relative permeability is highest for the point
A) $P$
B) $Q$
C) $R$
D) $S$
Explanation
(b) $B = \mu_{0}\mu_{r}H \Rightarrow \mu_{r} \propto \frac{B}{H} =$ slope of $B.H$ curve
According to the given graph, slope of the graph is highest at point $Q$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.