Physics · Magnetic Effects of Current

Two points A and B on the axis of a circular current loop are at distances of 4 cm and 3√3 cm from the centre of the loop. If the ratio of the magnetic fields at points A and B is 216 : 125, the radius of the loop is:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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3 cm

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Two points A and B on the axis of a circular current loop are at distances of 4 cm and 3&radic;3 cm from the centre of the loop. If the ratio of the magnetic fields at points A and B is 216 : 125, the radius of the loop is: