A parallel-plate air capacitor has a capacitance of 500 pF and a charge of magnitude 0.200 uC on each plate. The plates are 0.700 mm apart.

Part A
What is the potential difference between the plates?

Part B
What is the area of each plate?

Part C
What is the electric-field magnitude between the plates?

Part D
What is the surface charge density on each plate?