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book Field and Wave Electromagnetics 2nd Edition by David Cheng cover

Field and Wave Electromagnetics 2nd Edition by David Cheng

Edition 2ISBN: 978-0201128192
book Field and Wave Electromagnetics 2nd Edition by David Cheng cover

Field and Wave Electromagnetics 2nd Edition by David Cheng

Edition 2ISBN: 978-0201128192
Exercise 70
Using the principle of virtual displacement, derive an expression for the force between two point charges + Q and - Q separated by a distance x in free space.
Explanation
Verified
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Consider the potential energy equation.
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Field and Wave Electromagnetics 2nd Edition by David Cheng
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