Materials and Components

Assertion (A): Magnetic susceptibility of diamagnetic materials is much less than that of paramagnetic materials. Reason (R): For diamagnetic as well as paramagnetic materials, μ_r is nearly equal to 1.

A Both A and R are true and R is correct explanation of A

B Both A and R are true but R is not correct explanation of A

C A is true but R is false

D A is false but R is true

ANS:A - Both A and R are true and R is correct explanation of A

Magnetic susceptibility = (μ_r - 1)H. For diamagnetic and paramagnetic materials magnetic susceptibility is very very small and μ_r = 1.

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