The magnetic field due to a current-carrying circular loop of radius at its centre is

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

The magnetic field

B

due to a current-carrying circular loop of radius

12\,\mathrm{cm}

at its centre is

0.5\times10^{-4}\,\mathrm{T}

. Find the magnetic field due to the loop at a point on its axis at a distance of

5.0\,\mathrm{cm}

from the centre.