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When a charged particle moves in a magnetic field, does its KE always remain constant? |
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Answer» Solution :A charged PARTICLE moving in a MAGNETIC field of CONSTANT INTENSITY does not gain kinetic energy. This is because the force is `VEC F = q (vec V xx vec B)` and work done, `W = vec f.vec s` or in 1 second, `vec F. vec V = a(vec V xx vec B ) vec V =0`because of property of scalar triple product. |
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