Physics

Problem

A circular loop of radius

10\,\text{cm}

carries a current of

5\,\text{A}

. Find the magnitude of the magnetic field on its axis at a point

12\,\text{cm}

from the centre of the loop. (

\mu_0=4\pi\times10^{-7}\,\text{T m A}^{-1}

) a)

4.1\,\mu\text{T}

16\,\mu\text{T}

8.2\,\mu\text{T}

31\,\mu\text{T}