Homework Help: Physics

Posted by JOTHEY on Wednesday, March 3, 2010 at 3:29am.

An uncharged capacitor is connected to the terminals of a 3.0 V battery, and 9.0 uC flows to the positive plate. The 3.0 V battery is then disconnected and replaced with a 8.0 V battery, with the positive and negative terminals connected in the same manner as before.

How much additional charge flows to the positive plate?

Physics - drwls, Wednesday, March 3, 2010 at 7:07am
Stored charge is proportional to voltage. It increases by a factor 8/3, becoming 9.0*(8/3) = 24 uC

24 - 9 = ___ uC

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