A charge moving with velocity v in X-direction is subjected to a field of magnetic induction in negative X-direction. As a result, the charge will

remain unaffected                                                        

The force acting on a charged particle in magnetic field is given by

         $ \vec{F}= q (\vec{v} \times \vec{B}) = qVB sin\theta$

            When angle between V and B is 180°,

            F = 0