Magnetic Effects Of Current Question 313

Question: A particle moving in a magnetic field increases its velocity, then its radius of the circle [BHU 1998]

Options:

A) Decreases

B) Increases

C) Remains the same

D) Becomes half

Show Answer

Answer:

Correct Answer: B

Solution:

For motion of a charged particle in a magnetic field, we have r = mv/qB i.e. $ r\ \alpha \ v $