COMEDK2016PhysicsMagnetic Effects of Current
When a charged particle moves perpendicular to a uniform magnetic field, then
Options
- Aits momentum changes and total energy is same
- BBoth momentum and its total energy remain the same
- CBoth momentum and its total energy will change
- Dtotal energy changes but momentum remains same
Correct answer
A. its momentum changes and total energy is same
Step-by-step solution
When a charged particle moves in a uniform magnetic field normally, then a magnetic force acts on it. Due to this force, it will move in a circular path. At every point of circle, its velocity changes direction. So, its mumentun also changes bul the Lotal energy will remain same.