Mathematics

Problem

A straight wire

0.50\,\text{m}

long carries a current of

4.0\,\text{A}

at right angles to a uniform magnetic field of

0.20\,\text{T}

. Calculate the magnitude of the force acting on the wire. a)

0.80\,\text{N}

2.0\,\text{N}

0.40\,\text{N}

0.20\,\text{N}