A capacitor is connected to a battery. A second capacitor is then added to the first one in parallel. As the second capacitor is added, what happens to... (a) the charge on the first capacitor? -select- As the two capacitors remain connected, the plates of the second capacitor are slowly pulled further apart. As the plates are pulled apart, what happens to... (b) the voltage difference across the first capacitor? -select- (c) the voltage difference across the second capacitor? -select- (d) the charge on the second capacitor? -select- The second capacitor is now disconnected from the rest of the circuit. Then its plates are pulled even further apart. Compared to the values after it was disconnected but before the plates were pulled further part, what happens to... (e) the voltage difference across the second capacitor? -select- (f) the charge on the second capacitor? -select-

If capacitors are also used to store energy, what makes it different to batteries? When do we often use large capacitors, on series connection or on parallel connection? Cite an example.