Question

In a chamber, a uniform magnetic field of 6.5 G(1G= 104 T) is maintained. An electron is shot into the field with a speed of 6 4.8 x 106 ms-1 normal to the field. Explain why the path of the electron is a circle. Determine the radius of the circular orbit.

(e = 1.6 x 10-19 C, me = 9.1 x 10-31 kg)

Answer 1

F = qv x B

Since force is always perpendicular to velocity so path will be a circle