An electron beam passes through a region between two plates with a poten-a)tial difference giving rise to an electric field of E = 104 Vm-1. External coils give a magneticfield of B = 10-4 T in this region, at right angles to the electric field and to the electronbeam. The electron beam is undeflected (follows a straight line) in this region. Calculatethe velocity of the electrons.

When a moving electron is subjected to an electric field it experiences a force due to which, the…

a) tial difference giving rise to an electric field of E field of B = An electron beam passes through a region between two plates with a poten- 104 Vm-1. External coils give a magnetic 10-4 T in this region, at right angles to the electric field and to the electron beam. The electron beam is undeflected (follows a straight line) in this region. Calculate = the velocity of the electrons.

a) tial difference giving rise to an electric field of E field of B = An electron beam passes through a region between two plates with a poten- 104 Vm-1. External coils give a magnetic 10-4 T in this region, at right angles to the electric field and to the electron beam. The electron beam is undeflected (follows a straight line) in this region. Calculate = the velocity of the electrons.