NEET Physics Magnetic Properties of Materials Assertion Reason Question
Assertion (A): The magnetic field B inside a solenoid is influenced by the magnetisation M of the material inside. | Reason (R): The magnetic field contributed by the material core is expressed as B_m = μ_0 M, where μ_0 is the permeability of free space.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true, but R is false.
A is false.
Correct Answer
Detailed Explanation
The assertion is correct as the magnetic field inside a solenoid is affected by the magnetisation M, and the reason correctly explains this by stating the additional field B_m is proportional to M as per B_m = μ_0 M.
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