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NEET UG PHYSICS MCQ: MAGNETISM AND MATTER

1 Medium

1 of 1

Understanding +4 | -1

For an isotropic medium

B,\;\mu ,\;H

and

M

are related as (where

B,\;{\mu _0},\;H

and

M

have their usual meanings in the context of magnetic material)

View answer and explanation

Correct option: D

B = {\mu _0}\left( {H + M} \right)

Option D is correct. The relationship between B, μ₀, H, and M for an isotropic medium is given by

B = {\mu _0}(H + M)

.

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) A bar magnet of moment

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. The torque acting on the magnet is Assertion(A): Earth's magnetic field inside a closed iron box is less as compared to the out side.

Reason(R): The magnetic permeability of iron is low.