Question:medium
The magnetic field at the centre of a circular coil of radius $r$ carrying a current $I$ is proportional to
The magnetic field at the centre of a circular coil of radius $r$ carrying a current $I$ is proportional to
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Remember that for circular coils, the magnetic field strength decreases as the radius increases, and it directly depends on the current flowing through the coil.
Updated On: May 31, 2026
- $I / r$
- $I r$
- $I / r^2$
- $I r^2$
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The Correct Option is A
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