Three particles are moving perpendicular to uniform magnetic

Three particles are moving perpendicular to uniform magnetic field and travel on circular paths. Particles have same mass and speeds List the particle in order of their charge magnitude larged to smallest (a) 3,2,1 (b) 3,1,2 (c) 2,3,1 (d) 1,3,2 (e) 1,2,3

Solution

we know in a magnetic field the charged particle move in a circular path of radius

r=mv/ qB

because for all three particles the mass, velocity abd magnetic field is same,

If the mass and speed are the same, the magnetic force only depends on charge. Thegreater the magnitude of the charge, the greater the magnitude of the force, an the more the particle will bend. Therefore the correct answer is E.