5 - Capacitance _2_

5 - Capacitance _2_ - Physics 8B 5 - Capacitance rev 4.0 1...

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Unformatted text preview: Physics 8B 5 - Capacitance rev 4.0 1 5 Capacitance 1. Two large parallel plates with area, A, and separation distance, d, are attached to a battery of potential difference V. The battery is then removed and the plates are isolated. a) P: What is the capacitance, C, of this arrangement? b) P: What is the potential difference, V c , between the plates? c) P: What is the charge, Q, on the plates? d) P: What is the energy, U, stored in this capacitor? The plate separation is now changed to 3d. e) Q&P: How do each of the quantities C, V c , Q, and U change? Explain both qualitatively and quantitatively. f) Q: If U increased, where did the extra energy come from? If U decreased, where did the extra energy go? 2. Two large parallel plates with area, A, and separation distance, d, are attached to a battery of potential difference V. a) P: What is the capacitance, C, of this arrangement?...
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