An electron moving with velocity v to the right enters a region of uniform magnetic field that points out of the paper.After the electron enters the field,it will be

Question

Quizplus · Accepted Answer

The direction of force on a moving charge in a magnetic field is given by the right hand rule. Point your thumb in the direction of the velocity of the charge (to the right in this case), and your fingers in the direction of the magnetic field (out of the paper in this case). Your palm will then point in the direction of the force acting on the charge. In this case, the force will be upwards in the plane of the paper, causing the electron to be deflected upward. Therefore, the correct answer is D.

An Electron Moving with Velocity V to the Right Enters