Question

When a charged particle is acted on only by a magnetic force, its

Answer 1

F=q(v cross B)

so F is perpendicular to v

so F dot v is 0

so no change in energy

Answer 2

Explanation:

If a charge particular carrying positive charge q and moving with velocity V enter in magnetic field B. then it experience a force F(m) which is given by expression:

F(m). = q (V ×B).

Or

F(m) = Bvqsin theta.

Thank you