Electric Field near Current Wire – Rankers Physics

Relation between Current and Drift Velocity: Practice Problem & Solution

Assertion (A): Electric field is present in the vicinity of a current carrying wire. Reason (R): The principle of conservation of charge is not followed, when charges are in motion.  
(1) Both (A) & (R) are true and the (R) is the correct explanation of the (A)
(2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(3) (A) is true but (R) is false
(4) Both (A) and (R) are false

Solution Explained:

To solve this problem, we apply the core principles of Relation between Current and Drift Velocity. Understanding the underlying formula is key to arriving at the correct answer below:

Assertion (A) is true; an electric field is necessary to drive current through a wire. Reason (R) is false; the principle of conservation of charge is a fundamental law and holds true even when charges are in motion.

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