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 ___________________?

Options:

• 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

View Answer

C. a circle in a plane perpendicular to the field