Q. The magnetic force required to demagnetize the material is
A) Retaintivity
B) Coercivity
C) Energy loss
D) Hysteresis
Explanation
(b) The coercivity of a substance is a measure of the reverse magnetizing field required to destroy the residual magnetism of the substance.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.