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प्रश्न
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.
पर्याय
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.
उत्तर
(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.
