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# 22. (II) Two point charges. 3.0/uC and -2.0/xC. are placed ISBN: 9780321569837 99

## Solution for problem 22 Chapter 17

Physics: Principles with Applications | 6th Edition

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Problem 22

22. (II) Two point charges. 3.0/uC and -2.0/xC. are placed 5.0 cm apart on the .y axis. At what points along the .v axis is (a) the electric field zero and (b) the potential zero? Let V = 0 at r = oo.

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E=1.60*10^-19 C…. Coulombs is the unit of the charge. Mass of e is much less than protons and neutrons and that explains why electrons are so mobile. Electric forces acts on the charges, but this electric force cannot actually be seen and can explain why protons repel and electrons repel. Force is an important law in regards to point charges. Newtons 3 law of motion (action and reaction) same...

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##### ISBN: 9780321569837

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