Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition
17
Electric Potential
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17-1 to 17-4: Electric Potential
17-5: Potential Due to Point Charges
17-6: Electric Dipoles
17-7: Capacitance
17-8: Dielectrics
17-9: Electric Energy Storage
17-10: Digital
17-11: TV and Computer Monitors

Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 52
Q

650 V is applied to a 2800-pF capacitor. How much energy is stored?

A
5.9×104 J5.9 \times 10^{-4} \textrm{ J}
Giancoli 7th Edition, Chapter 17, Problem 52 solution video poster
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VIDEO TRANSCRIPT

This is Giancoli Answers with Mr. Dychko. The energy stored in a capacitor is one half times its capacitance times the voltage across it, squared. So that's one half times 2800 times ten to the minus twelve farads times 650 volts squared which gives 5.9 times ten to the minus four Joules.

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