Physics

Problem

An electron (magnitude of charge

=1.6\times10^{-19}\,\text{C}

) travels at

2.5\times10^{6}\,\text{m s}^{-1}

in a uniform magnetic field of

0.40\,\text{mT}

making an angle of

45^{\circ}

with the field. Calculate the magnitude of the magnetic force on the electron. a)

1.6\times10^{-16}\,\text{N}

1.1\times10^{-16}\,\text{N}

2.3\times10^{-16}\,\text{N}

7.1\times10^{-17}\,\text{N}