A straight piece of wire runs horizontally from point X on the left to point Y on the…

PHYSICS · Single correct · CBSE · Physics · Electricity · Electricity

Problem

A straight piece of wire runs horizontally from point X on the left to point Y on the right. A battery is connected across the wire, forming a closed loop. When the battery’s positive terminal is attached to point X and its negative terminal to point Y, conventional current in the wire is from X to Y. If the battery is flipped so that its positive terminal is now at point Y and its negative terminal at point X, which of the following describes the new conventional current in the wire? (a) It remains from X to Y because electrons now flow in that direction, leaving conventional current unchanged. (b) The current splits, with equal amounts flowing from X to Y and from Y to X, producing no net current. (c) It reverses direction and is now from Y to X. (d) It becomes zero momentarily during the flip and then resumes from X to Y once charges redistribute.

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