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 $