Question:medium

Two identical wires, carrying equal currents are bent into circular coils A and B with 2 and 3 turns respectively. The ratio of the magnetic fields at the centres of the coils A and B is

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If a wire of fixed length is bent into $N$ turns, the magnetic field at the center is proportional to $N^2$. $B \propto N^2$.

Updated On: Mar 26, 2026

4:9
2:3
9:4
3:2

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The Correct Option is A

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