(a) Write the expression for the force `vecF` acting on a particle of mass m and charge q moving with velocity `vecv` in a magnetic field `vecB`. Under what conditions will it move in (a) a circular path and (ii) a hetical path?

Answer the following: (a) Write the expression for the force vec(F) acting on a particle of mass m and charge q moving with velocity vecV in a magnetic field vecB . Under what conditions will it move in (i) a circular path and (ii) a helical path ? (b) Show that the kinetic energy of the particle moving a magnetic field remains constant.

Write the expression for the magnetic force acting on a, charged particle moving with velocity v in the presence of magnetic field B.

What is the direction of the force acting on a charged particle q, moving with velocity vec v in a uniform magnetic field?

A particle with charge q is moving with a velocity vecv in a magnetic field vecB . If the force acting on the particle is vecF then,