A single-turn circular wire of radius 0.1 m carries a current of 5 A

PHYSICS · Subjective · CBSE · Physics · Magnetic Effects of Electric Current · Magnetic Effects of Electric Current

Problem

A single-turn circular wire of radius 0.1 m carries a current of 5 A. The wire is rewound to form a coil of 5 turns of the same radius. What current must be passed through the 5-turn coil so that the magnetic field at its centre remains unchanged?

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