A student records the following data for the magnitudes (B) of the magnetic field at axial points at different distances x from the centre of a circular coil of radius 'a' carrying a current I. Verify (for any two) that these observations are in good agreement with the expected theoretical variation of B with x.

A student records the following data for the magnitudes (B) of the mag

1.	A student records the following data for the magnitudes (B) of the magnetic field at axial points at different distances x from the centre of a circular coil of radius 'a' carrying a current I. Verify (for any two) that these observations are in good agreement with the expected theoretical variation of B with x.
Answer» Solution :MAGNETIC field (B) is GIVEN`B = (mu_0)/(4PI) = (2M)/(x^2)`

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