4) Two large conducting parallel plates are separated by
d=2.4\times10^{-3} m. A uniform field of 1500 V/m, in the
positive x-direction, is produced by charges +Q and -Q on
the plates. The area of each plate is A=0.20m$^2$.
a. Write down a symbolic expression for the electric
field in terms of Q, A, and any other needed constants.
b. What is the magnitude of the charge Q in Coulombs?
c. On the figure to the right, sketch and label two electric
field vectors between the plates.
d. On the figure to the right, sketch and label an equipotential line between the
plates.
e. What is the potential difference between the plates?
f. If an electron is released at rest from the plate on the right (the one with -Q),
what will be its change in potential energy when it arrives at the positively
charged plate?
g. What will be the electron's velocity when it arrives at the positively charged
plate?
