A parallel-plate capacitor is connected to a battery.
Chapter 24, Problem 24.6(choose chapter or problem)
A parallel-plate capacitor is connected to a 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. What does it read? (b) What would the voltmeter read if (i) the plate separation were doubled; (ii) the radius of each plate were doubled but their separation was unchanged?
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