question_answer

A homogeneous electric field E and a uniform magnetic field \[\overset{\to }{\mathop{B}}\,\] are pointing in the same direction. A proton is projected with its velocity parallel to \[\overset{\to }{\mathop{E}}\,\]. It will           [Roorkee 2000]

A)            Go on moving in the same direction with increasing velocity

B)            Go on moving in the same direction with constant velocity

C)            Turn to its right

D)            Turn to its left