Question

Find the force on an electron passing through a 0.50 T magnetic field if the velocity of the electron is 4.0 × 106 m/s. (answer in scientific notation, include sign)

Answer 1

Given:

The strength of the magnetic field is B = 0.5 T

The velocity of the electron is

$v=\text{ 4}\times10^6\text{ m/s}$

The charge on an electron is

$q=-1.6\times10^{-19}\text{ C}$

To find the force.

Explanation:

The force can be calculated as

$\begin{gathered} F=qvB \\ =1.6\times10^{-19}\times4\times10^6\times0.5 \\ =3.2\times10^{-13}\text{ N} \end{gathered}$