# Magnetic Fields of electron

AznBoi

## Homework Statement

An electron is accelerated through 2400V from rest and then enters a region where there is a uniform 1.7 T magnetic field. What are (a) the maximum and (b) the minimum magnitudes of the magnetic force acting on this electron?

## Homework Equations

$$F_{b}=q(v * B)$$

## The Attempt at a Solution

I'm unsure of where to start. How do you calculate the speed (v) if they only give you the voltage that the electron goes through? I have all of the other required information to plug in the equation but not the speed of the electron. Thanks.