Question

Assertion (A): The deflection of a compass needle placed near a current carrying wire decreases when the magnitude of an electric current in the wire is increased.

Reason (R): Strength of the magnetic field at a point due to a current carrying conductor increases on increasing the current in the conductor.

विकल्प

• 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, but (R) is true.

Answer 1

(A) is false, but (R) is true.

Explanation:

As a wire's current increases, the magnetic field around it strengthens, causing the deflection of a compass needle to increase rather than decrease. Assertion (a) incorrectly states that the relationship between compass needle deflection and wire current is the same.