Problem a 120-acircmicrof parallel-plate capacitor is, Ask an Expert

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Problem: A 12.0-ÂµF parallel-plate capacitor is connected to a 9.0-V battery. After the capacitor is fully charged, the battery is disconnected without loss of any of the charge on the plates.

Part A: What would the voltmeter read if the radius of each plate was quadrupled, but their separation was unchanged?

This is a physic problem, respond as soon as possible. Thanks.

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