Question

An electron enters into a uniform magnetic Field
perpendicularly to it. The path of the electron would be.

(i) circular (ii) linear
(iii) Parabolic (iv) elliptied​

Answer 1

Answer:

i) circular path

An electron enters a uniform magnetic field with a path perpendicular to the field lines and moves in a circular path of radius R. A positron (same mass of an electron but opposite charge) enters the same magnetic field in a path perpendicular to the field with four times the kinetic energy.

Hope this helps you

Answer 2

The path of the electron would be circular.

This is because the force that will be exerted on the electron will be perpendicular to the cross product of the direction of velocity and direction of magnetic field.

F=q × (v × B)