A capacitor consists of two parallel metal plates in air. The distance between the plates is 5.00 mm and the capacitance is 72 pF. The potential difference between the plates is raised to 12.0 V with a battery. (a.) Calculate the energy stored in the capacitor. (b.) The battery is then disconnected from the capacitor; the capacitor retains its charge. Calculate the energy stored in the capacitor if the distance between the plates is now increased to 10.00 mm. The answers to (a) and (b) are different. Why is this so? Use your answers to estimate the average force of attraction between the plates while the separation is being increased.
A capacitor consists of two parallel metal plates in air. The distance between the plates is 5.00 mm and the capacitance is 72 pF. The potential difference between the plates is raised to 12.0 V with a battery. (a.) Calculate the energy stored in the capacitor. (b.) The battery is then disconnected from the capacitor; the capacitor retains its charge. Calculate the energy stored in the capacitor if the distance between the plates is now increased to 10.00 mm. The answers to (a) and (b) are different. Why is this so? Use your answers to estimate the average force of attraction between the plates while the separation is being increased.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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A capacitor consists of two parallel metal plates in air. The distance between the plates is 5.00 mm and the capacitance is 72 pF. The potential difference between the plates is raised to 12.0 V with a battery.
(a.) Calculate the energy stored in the capacitor.
(b.) The battery is then disconnected from the capacitor; the capacitor retains its charge. Calculate the energy stored in the capacitor if the distance between the plates is now increased to 10.00 mm.
The answers to (a) and (b) are different. Why is this so?
Use your answers to estimate the average force of attraction between the plates while the separation is being increased.
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