Asked by tina
a MAGNET CAN EXERT A FORCE ON A MOVING CHARGED PARTICLE, BUT IT CAN NOT CHANGE THE PARTICLE'S KINETIC ENERGY. WHY?
Answers
Answered by
drwls
The force that a magnetic field exerts on a charge is always perpendicular to the direction of motion. Work is only done by the force component along the direction of motion, and that component is always zero.
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