NEET Physics Question - Magnetic Effects of Current

Assertion (A): A system displaying a hysteresis loop, such as a ferromagnet is a device for storing memory.

Reason (R): A ferromagnetic substance remains magnetised even after external field is removed.

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

Hysteresis means a material retains magnetization (retentivity) when the external field is removed. This residual magnetism allows the material to 'remember' its magnetic state, forming the basis of magnetic memory. Thus, Reason (R) correctly explains Assertion (A).

Rankers Physics

Hysteresis and Magnetic Memory

Solution:

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