Two parallel plates have a capacitance of 1.0 µF when they are 1.0 mm apart. The plates are then fully charged by a 9.0 V battery and then permanently disconnected.
(a) How much charge is stored on each plate?
(b) What is the constant electric field strength between the plates?
(c) How much force is required to hold the two oppositely charges plates apart? Note that you are moving one plate through the electric field of the other. The electric field above is the combinted field of both plates together.
(d) A dielectric material is placed between the plates, which remain disconnected from the battery. What happens to the electric field strength between the plates? Why does this happen?