Physics

Problem

A proton experiences a magnetic force of

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

while moving at

4.0\times10^{7}\,\text{m s}^{-1}

perpendicular to a uniform magnetic field. Find the magnitude of the magnetic field. a)

50\,\text{mT}

5.0\,\mu\text{T}

5.0\,\text{mT}

0.5\,\text{mT}