Physics

Problem

A proton moving at

3.0\times10^{5}\,\text{m}\,\text{s}^{-1}

experiences a magnetic force of

2.4\times10^{-14}\,\text{N}

when its velocity is perpendicular to a uniform magnetic field. What is the magnitude of the magnetic field? a)

2.0\,\text{T}

0.05\,\text{T}

0.50\,\text{T}

0.50\,\text{mT}