Q4.10Multiple correct
A cubical region of space is filled with some uniform electric and magnetic fields. An electron enters the cube across one of its faces with velocity v and a positron enters via opposite face with velocity - v. At this instant,
- (a)the electric forces on both the particles cause identical accelerations.
- (b)the magnetic forces on both the particles cause equal accelerations.
- (c)both particles gain or loose energy at the same rate.
- (d)the motion of the centre of mass (CM) is determined by B alone.