9
lesson pretestMultiple Choice

Pretest

Question 9 • Physics

A charge is moving in a magnetic field that points to the left. What direction can the charge move and experience no magnetic force? Choose two correct answers.

Answer
A
out of the screen
B
down
C
up
D
into the screen
E
right
F
left

Explanation

The magnetic force on a moving charge is zero when its velocity is parallel or antiparallel to the magnetic field. Since the field points left, the charge can move left with it or right against it and experience no magnetic force. These correspond to right and left.

AI-written and checked against the verified answer.