When a charged particle moving with a velocity `vecv` is subjected to a magnetic field `vecB`, the force acting on it is non zero. Would the particle gain any energy?

When a charged particle moving with a velocity `vecv` is subjected to

1.	When a charged particle moving with a velocity `vecv` is subjected to a magnetic field `vecB`, the force acting on it is non zero. Would the particle gain any energy?
Answer» The magnetic force on a moving charged particle in a magnetic field is, `vecF=q(vecvxxvecB)`. Its direction is perpendicular to direction of motion of particle as well as perpendicular to the direction of magnetic field. Due to it, no work is done by the magnetic force on the charged particle. Therefore, the particle does not gain any kinetic energy.

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When a charged particle moving with a velocity `vecv` is subjected to a magnetic field `vecB`, the force acting on it is non zero. Would the particle gain any energy?

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