Mathematics

Problem

A straight conductor carries a current of

5\,\text{A}

. Calculate the magnetic field strength at a point

2\,\text{cm}

away from the wire. (Take

\mu_0 = 4\pi \times 10^{-7}\,\text{T m A}^{-1}

.) a)

2.5 \times 10^{-5}\,\text{T}

5.0 \times 10^{-4}\,\text{T}

5.0 \times 10^{-5}\,\text{T}

5.0 \times 10^{-6}\,\text{T}