A beam of electron passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off, and the same magnetic field is maintained, the electrons move

Question

A beam of electron passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off, and the same magnetic field is maintained, the electrons move (A) in a circular orbit (B) along a parabolic path (C) along a straight line (D) in an elliptical orbit.

Tardigrade Admin · Accepted Answer

Electron travelling in a magnetic field perpendicular to its velocity - circular path.

Q. A beam of electron passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off, and the same magnetic field is maintained, the electrons move

in a circular orbit

along a parabolic path

along a straight line

in an elliptical orbit.

Electron travelling in a magnetic field perpendicular to its velocity - circular path.