Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

When strong magnetic field is applied on a stationary electron, the electron:

Options:

moves in the direction of the field.

moves in opposite direction of the field.

starts spinning.

remains stationary.

Correct Answer:

remains stationary.

Explanation:

The correct answer is Option (4) → remains stationary.

When a strong magnetic field is applied to a stationary electron, the electron remains stationary because the magnetic force on the electron is zero.

Lorentz force, $F=q(v×B)$

$=q(0×B)$ [$v=0$ (stationary)]

$=0$