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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
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17-5: Potential Due to Point Charges
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17-6: Electric Dipoles
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17-7: Capacitance
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17-8: Dielectrics
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17-9: Electric Energy Storage
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17-11: TV and Computer Monitors
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Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 8
Q

The electric field between two parallel plates connected to a 45-V battery is 1900 V/m. How far apart are the plates?

A
24 mm24 \textrm{ mm}
Giancoli 7th Edition, Chapter 17, Problem 8 solution video poster
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VIDEO TRANSCRIPT

This is Giancoli Answers with Mr. Dychko. Potential difference between two points is the negative of the electric field between them divided by the distance between those two points. We can divide both sides by the electric field to solve for the distance. We don't really care about the negative sign here so we just take the absolute value. We have 45 volts divided by electric field of 1,900 volts per meter. You get about 24 millimeters.

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Giancoli Answers, including solutions and videos, is copyright © 2009-2024 Shaun Dychko, Vancouver, BC, Canada. Giancoli Answers is not affiliated with the textbook publisher. Book covers, titles, and author names appear for reference purposes only and are the property of their respective owners. Giancoli Answers is your best source for the 7th and 6th edition Giancoli physics solutions.