Why does magnetic force not change speed?

The magnetic force will not change the speed of a moving electron because the magnetic force is always perpendicular to the velocity. A moving electron in a uniform magnetic field will undergo uniform circular motion.

Can magnetic force change the speed of moving charged particle?

Interestingly, the force on the charged particle is always perpendicular to the direction it is moving. Thus magnetic forces cause charged particles to change their direction of motion, but they do not change the speed of the particle.

Can magnetic force change the momentum of moving charged particle?

False, because the magnetic force does not do work, so it cannot change the kinetic energy of either particle.

Can a magnetic force do work on a charged particle?

The magnetic force does no work on a charged particle. Therefore a magnetic field cannot be used to increase the energy of a charged particle. If v and B are perpendicular the particle will move in a circular path. Particles with this velocity are undeflected.

Can a magnetic field exert a force on a charged particle that causes that particle to speed up or slow down?

Magnetic force is always perpendicular to velocity. If a force is perpendicular to an object’s motion, no work is done by that force. Therefore, the magnetic force cannot change give or take kinetic energy from the object so the object cannot speed up or slow down.

Can a magnetic field exert a force on a charged particle that causes that particle to change direction explain your reasoning?

A particle with constant velocity will move along a straight line through space. If a charged particle’s velocity is completely parallel to the magnetic field, the magnetic field will exert no force on the particle and thus the velocity will remain constant.

What is the magnetic force on the particle?

In contrast, the magnetic force on a charge particle is orthogonal to the magnetic field vector, and depends on the velocity of the particle. The right hand rule can be used to determine the direction of the force. An electric field may do work on a charged particle, while a magnetic field does no work.

What will be the magnetic force on a charged particle moving along a magnetic lines of force?

The magnetic force on the particle is. zero.