The capacitor of Problem 79 is initially charged to a 150-V potential difference. The plates are then

Question:

The capacitor of Problem 79 is initially charged to a 150-V potential difference. The plates are then physically separated by another 0.750 mm in such a way that none of the charge can leak off the plates. Find
(a) The new capacitance
(b) The new energy stored in the capacitor. Explain the result using conservation of energy.