When a charged particle moves perpendicular to a uniform magnetic field, then

Question

When a charged particle moves perpendicular to a uniform magnetic field, then (A) its momentum changes, total energy is same (B) both momentum and total energy remain the same (C) both momentum and its total energy will change (D) total energy changes, momentum remains same

Tardigrade Admin · Accepted Answer

As magnetic force acting on a charged particle moving in a uniform magnetic field does no work, so its energy will be same. But velocity of the particle changes continuously so its momentum changes

Q. When a charged particle moves perpendicular to a uniform magnetic field, then

its momentum changes, total energy is same

both momentum and total energy remain the same

both momentum and its total energy will change

total energy changes, momentum remains same

As magnetic force acting on a charged particle moving in a uniform magnetic field does no work, so its energy will be same. But velocity of the particle changes continuously so its momentum changes