Question

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

• A. along a straight line
• B. in an elliptical orbit
• C. in a circular orbit
• D. along a parabolic path

Answer 1

The correct option is C in a circular orbit

In magnetic afield a charged particle moves in a circular orbit.