A second electron (see question 39) travels along a straight path (in step with the first electron) from left to right in a plane parallel to and in the plane of your test paper. The consequent magnetic force on the second electron at a point on your test paper is in the direction
A) out of the paper, toward the reader.
B) into the paper, away from the reader.
C) toward the top of the paper, in its plane.
D) toward the bottom of the paper, in its plane.

Question

Quizplus · Accepted Answer

According to the right-hand rule, if the first electron is moving from left to right and the second electron is moving in the same direction, the magnetic field created by the first electron at the location of the second electron would be directed into the paper. Consequently, the magnetic force on the second electron, which is negatively charged and moving in a magnetic field, would be directed into the paper, away from the reader.

A Second Electron (See Question 39) Travels Along a Straight