When an electron moving with a uniform speed in a vacuum enters a magnetic field in a direction perpendicular to the field the subsequent path of the electron is ___________________?

A. a straight line parallel to the field
B. a parabola in a plane perpendicular to the field
C. a circle in a plane perpendicular to the field
D. a straight line along its initial direction

Correct Answer: a circle in a plane perpendicular to the field ✔

Last Updated: January 20, 2021