# A stream of e- is projected horizontally towards the right. If a magnet brought near the e- beam produces magnetic field directed downward then the e- beam bends in_____ direction

Dear Student,

Given that the electron beam is moving horizontally, let the electron beam is moving along the positive direction. If the magnetic field is acting downwards, let the magnetic field is acting along the negative Y-axis. Then according to the Lorenz Force equation,

${\stackrel{\to }{F}}_{B}=q\left(\stackrel{\to }{v}×\stackrel{\to }{B}\right)$
Therefore, According to Left Hand Fleming's Rule, the force has to act along the negative Z- axis. But since the charge of the electron is negative. Then the force on the electron is along positive Z - axis.