Which one will experience maximum force when projected with the same velocity 'v' perpendicular to the magnetic field B, alpha particle or beta particle?

Force acting on a charged particle in a uniform magnetic field moving with velocity v is given as:

F = q(v x B)

Now this means qvBsinӨ

Where Ө is the angle between v and B.here Ө = 90^o
F = Bqv
As for same velocity and magnetic field alpha particle will experience maximum force because it have greater charge than beta particle.