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## Homework Statement

An electron enters a uniform magnetic field of 0.152 teslas such that the electron follows a circular path. What is the period of the electron's motion? Electrons have a mass of about 9.11 x 10-31 kilograms each. Hint: Since the radius of the electron's path is not given, it must cancel out of the equations.

## Homework Equations

Fm = Q * V * B

F = M * A

A = V^2/r

V= 2(pi)r/T

## The Attempt at a Solution

Q * V * B = M * A

Q * V * B = M * V^2/r

Q * 2(pi)r/T * B = M* V^2/r

Q * 2(pi)/T * B = M * V^2

(1.6E-19) * 2(pi)/T = (9.11E-31) * (3.00E8)^2

Solve for T

T = 1.86E-6 s

But it is wrong...