Parallel-plate capacitor energy storage · CAP 2003 #1
Physics · electromagnetism
Problem
A parallel-plate capacitor holds charge q and is not connected to anything. The distance between the plates is now increased. The electrical energy stored on the capacitor
(a) decreases;
(b) remains the same;
(c) increases;
(d) can do any of the above, depending on how the capacitance changes.