Subject - Physics:

Basics

MCQ - 81-10548

Question:

A magnetic field

always exerts a force on a charged particle
never exerts a force on a charged particles
exerts a force if the charged particle is moving in the direction of the magnetic field lines
never exerts a force on a charged particles

Correct Answer: D

Explanation:

FB = qvBSinθ The force will be maximum when the angle between the magnetic field lines and the motion of the particle is 90^o.

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