Question

A conductor wire of resistance 100 ohm is stretched such that tge radius of cross section of wire becomes half of the initial radius then the resistance of the wire will be

Answer 1

ANSWER➡

The resistance of a conductor is directly proportional to its length and indirectly proportional to its cross—sectional area. As the wire is stretched to its double length, its cross—sectional area will become half. Hence,the resistance of the conductor wire will become 4 times i.e. 400 ohm ...

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