A particle of charge q and mass m moving with a velocity v enters a uniform magnetic field of strength B in the direction of the field. The force on the par...

A particle of charge q and mass m moving with a velocity v enters a uniform magnetic field of strength B in the direction of the field. The force on the particle is

Answer Details

The force on a charged particle moving in a magnetic field is given by the formula F = qvB, where F is the force, q is the charge of the particle, v is its velocity, and B is the strength of the magnetic field. In this case, the particle is moving in the direction of the field, so the angle between its velocity and the magnetic field is zero. Therefore, the force on the particle is simply qvB. The mass of the particle does not affect the force in this case. So, the correct option is "qvB".