An electron is accelerated from the filament in a vacuum tube towards a metal grid which is maintained at a potential of 180 Volts. It goes through one of the holes in the grid and continues towards a metal plate 1.2 cm away which is maintained at a potential of -10.0 Volts.
How close to the plate does the electron get?
Im not sure, maybe something to do with Potential Difference
The Attempt at a Solution
I don't know where to start