Write the expression for the force experienced by a charge q moving with a velocity v in an electric field E.

The force experienced by the positive ions in a cyclotron due to magnetic field

Find an expression for the torque experienced by an electric dipole in a uniform electric field. What is the work done in rotating a dipole in a uniform electric field from an angle theta_(1) and theta_(2) where theta_(1) and theta_(2) are the angles made by dipole moment with the uniform electric field.

The force overset (rarr) F acting on charge 'q' moving with a velocity overset (rarr)V in a magnetic field of induction overset (rarr)B is given by