Discussion :: Materials and Components
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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.
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A.
Both A and R are true and R is correct explanation of A
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B.
Both A and R are true but R is not correct explanation of A
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C.
A is true but R is false
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D.
A is false but R is true
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Answer : Option C
Explanation :
μr is always more than 1. It cannot be 0 or less than 1.
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