A charged particle moves in a uniform magnetic field with a velocity component perpendicular to the field.

Physics · Magnetic effect of current · motion of charge particle in magnetic field

JEE MainsNEET

A charged particle moves in a uniform magnetic field with a velocity component perpendicular to the field.

Assertion

A magnetic field can change the momentum vector of a charged particle without changing its kinetic energy.

Reason

The magnetic force is perpendicular to the instantaneous velocity and therefore does no work.

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