Magnetic Effects Of Current Question 299

Question: A charged particle is moving with velocity v in a magnetic field of induction B. The force on the particle will be maximum when [MP PMT/PET 1998]

Options:

A) v and B are in the same direction

B) v and B are in opposite directions

C) v and B are perpendicular

D) v and B are at an angle of $ 45{}^\circ $

Show Answer

Answer:

Correct Answer: C

Solution:

Lorentz force $ F=( v\times B ) $ or $ | F |=qvB\sin \theta $ F will be maximum. when $ \theta =90^{o} $