Magnetics 1 Question 31
31. There is no change in the energy of a charged particle moving in magnetic field although a magnetic force is acting on it.
$(1983,2 M)$
Analytical & Descriptive Questions
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Answer:
Correct Answer: 31. (a) $L=\frac{m v _0}{2 B _0 q}$
Solution:
- Magnetic force acting on a charged particle is always perpendicular to its velocity or work done by a magnetic force is always zero. Hence, a magnetic force cannot change the energy of charged particle.
