Question

A electron travelling at 5.0*10^5 m/s enters through a hole in a positive plate and collides with the negative plate at 1.0*10^5 m/s. Determine the electrical potential differnece between the charger plates

Answer 1

\[\frac{ 1 }{ 2 } mv^2 _{2}- \frac{ 1 }{ 2 } mv^2 _{1} = eV\]
m and e are mass and charge of the electron