Magnetic Effects Of Current Question 402
Question: A particle is projected in a plane perpendicular to a uniform magnetic field. The area bounded by the path described by the particle is proportional to
Options:
A) the velocity of light
B) the momentum of the object
C) the kinetic energy of an object is the energy it possesses due to its motion
D) None of these
Show Answer
Answer:
Correct Answer: C
Solution:
[c] As $ r=\frac{mv}{qB}=\frac{P}{qB} $
$ \therefore , $ Area, $ A=\pi r^{2}=\pi {{( \frac{P}{qB} )}^{2}}=\frac{\pi p^{2}}{qB}=\frac{2m\pi }{qB}K $
BETA
