Physics

Problem

An electron (

q = -1.6 \times 10^{-19}\,\text{C}

) enters a uniform magnetic field of magnitude

0.15\,\text{T}

with speed

2.0 \times 10^{7}\,\text{m s}^{-1}

making an angle of

30^{\circ}

with the field. Find the magnitude of the magnetic force on the electron.