Question

An electron with speed v0 << c moves in a circle of radius r0 in a uniform magnetic field. This electron is able to traverse a circular path as the magnetic force acting on the electron is perpendicular to both v0 and B, as shown in the figure. This force continuously deflects the particle sideways without changing its speed and the particle will move along a circle perpendicular to the field. The time required for one revolution of the electron is T0.

If this electron of charge (e) is moving parallel to a uniform magnetic field with constant velocity v, the force acting on the electron is ______.

पर्याय

• Bev

• `(Be)/v`

• `B/(ev)`

• Zero

Answer 1

If this electron of charge (e) is moving parallel to a uniform magnetic field with constant velocity v, the force acting on the electron is Zero.