A 33 µF parallel-plate capacitor is connected to a 6 Volt battery. After the capacitor is fully charged, the battery is disconnected without loss of any of the charge on the plates.
A) A voltmeter is connected across the two plates without discharging them. Determine what does it read?
B) Find what would the voltmeter read if the plate separation were quadrupled?
C) Find what would the voltmeter read if the radius of each plate were halved and, but their separation was unchanged?