A fixed-length wire initially forms one circular loop of radius R carrying current I. It is rewound into N identical circular turns and the current remains I. Find the ratio of the new centre field to the original centre field.
Physics · Magnetic effect of current · biot savart law and magnetic field due to straight conductor ,arc and ring
A fixed-length wire initially forms one circular loop of radius R carrying current I. It is rewound into N identical circular turns and the current remains I. Find the ratio of the new centre field to the original centre field.
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