Physics-Magnetic Properties of Materials

NEET Physics Magnetic Properties of Materials Assertion Reason Question

Type: Assertion Reason-assertion-Hard-Class 12

Assertion (A): Ferromagnetic materials can retain magnetisation even after the external magnetic field is removed. | Reason (R): Ferromagnetic materials contain domains that align and form a single giant domain under the influence of an external magnetic field.

A

Both A and R are true, and R is the correct explanation of A.

B

Both A and R are true, but R is not the correct explanation of A.

C

A is true, but R is false.

D

A is false.

Correct Answer

Option A

Detailed Explanation

The NCERT text explains that in ferromagnetic materials, domains align and amalgamate into a single giant domain, which leads to persistent magnetisation even after the external field is removed.

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