Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Induction

Question:

Case : Read the passage and answer the question(s).

A force on a charge in electric and magnetic field is given as :

F = qE + qvB

where, 

E : Electric field

B : Magnetic field

q : Charge

v : Velocity of the charge

Based on this information, answer the question that follows.

Consider that charge is held stationary. What can you say about the force on the charge?

Options:

Non zero

Zero

Infinite

Zero only if the magnetic field is zero.

Correct Answer:

Non zero

Explanation:

As charge is held stationary, v = 0.

Therefore, F = qE \(\neq \) 0