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Physics
Classical Physics
Electromagnetism
Negative potential energy and capacitors
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[QUOTE="jartsa, post: 6333652, member: 386340"] We can take energy out of a capacitor by: 1. Letting the positive charges move further apart. That decreases the positive energy of one plate. 2. Letting the negative charges move further apart. That decreases the positive energy of one plate. 3. Letting the opposite charges get closer together. That increases the negative energy of the capacitor. 4. Draining the capacitor, which involves all those three things above.In the link in post #1, there it is mentioned something about zero being a special number among numbers, and gravitational potential at infinity being a special gravitational potential among gravitational potentials. Well, I agree with that part of the answer. (Actually only zero being an important number was mentioned. Well, it's not a very good answer IMO) [/QUOTE]
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Forums
Physics
Classical Physics
Electromagnetism
Negative potential energy and capacitors
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