Physics

Problem

A long straight conductor carries a current of

10\,\text{A}

. Calculate the magnitude of the magnetic field at a point

5.0\,\text{cm}

from the wire.

(\mu_0 = 4\pi\times10^{-7}\,\text{H\,m}^{-1})

2\times10^{-5}\,\text{T}

4\times10^{-5}\,\text{T}

8\times10^{-5}\,\text{T}

4\times10^{-4}\,\text{T}