When a ferromagnetic substance is magnetised there are small changes i – McqOptions

MCQOPTIONS

1.	When a ferromagnetic substance is magnetised there are small changes in dimensions. This phenomenon is called
A.	diamagnetism
B.	dipolar relaxation
C.	Both A and R are true and R is correct explanation of A
D.	Both A and R are true but R is not correct explanation of A
Answer» C. Both A and R are true and R is correct explanation of A

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