Question

If an electron moves in a circle of radius 21 cm perpendicular to a B field of 0.4 T, what are the speed of the electron and the frequency of motion?

Answer 1

a)

m/s

b)

Angular frequency =

Step-by-step explanation:

As we know

q is the charge on the electron =
C

B is the magnetic field in Tesla =
T

r is the radius of the circle =
m

mass of the electrons =
Kg

a)

Substituting the given values in above equation, we get -

m/s

b)

Angular frequency =