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A charged particle is moving in a uniform magnetic field, then
(a) both momentum and total energy will change
(b) its momentum changes but total energy remains the same
(c) its total energy changes but momentum remains the same
(d) both momentum and total energy remain the same
A charged particle is moving in a uniform magnetic field, then
(a) both momentum and total energy will change
(b) its momentum changes but total energy remains the same
(c) its total energy changes but momentum remains the same
(d) both momentum and total energy remain the same
Answer is : (b) its momentum changes but total energy remains the same
Charged particle moves on circular path in magnetic field with uniform speed. Force on charged particle is always perpendicular to speed, hence work done is zero.
Due to change in velocity of particle on circular path, momentum changes.