Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

What is the force experienced by an electron moving with velocity of 0.5c in a magnetic field $\vec{B}$ of 2T? The angle between the velocity vector and $\vec{B}$ is 90°.

(c is the velocity of light, $e=1.6 \times 10^{-19} C$)

Options:

$4.8 \times 10^{-10} N$

$4.8 \times 10^{-11} N$

$4.8 \times 10^{-12} N$

$4.8 \times 10^{-13} N$

Correct Answer:

$4.8 \times 10^{-12} N$

Explanation:

The correct answer is Option (3) → $4.8 \times 10^{-12} N$