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Electronics and Communication Engineering - Materials and Components - Discussion

Discussion Forum : Materials and Components - Section 3 (Q.No. 29)
Materials and Components
29.

Assertion (A): For a magnetic material M = (μr - 1) H, where M is magnetic dipole moment/m3, H is field intensity A/m and μr is relative permeability.

Reason (R): μr can have any value from 0 to hundreds of thousands.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:

μr is always more than 1. It cannot be 0 or less than 1.

Discussion:
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