An electron is moving horizontally east in an electric field that points vertically upward.The electric force on the proton is
A)zero.
B)upward.
C)downward.
D)to the west.
E)to the east.

Question

Quizplus · Accepted Answer

The electric force on a charged particle is in the direction of the electric field for a positive charge and opposite for a negative charge. Since the electron is negatively charged and the electric field is upward, the force on the electron is downward.

An Electron Is Moving Horizontally East in an Electric Field