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Chapter 21 Electric Charge and Coulomb's Law

by: Katie Hoenie

Chapter 21 Electric Charge and Coulomb's Law Phys2140

Marketplace > University of Toledo > Astronomy > Phys2140 > Chapter 21 Electric Charge and Coulomb s Law
Katie Hoenie
GPA 3.54
Physics II
Song Cheng

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About this Document

This is all of Chapter 21 notes and Chapter 22 notes will be on next weeks. There is some drawling to help you understand the concept better. enjoy :)
Physics II
Song Cheng
Class Notes
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This 2 page Class Notes was uploaded by Katie Hoenie on Saturday August 29, 2015. The Class Notes belongs to Phys2140 at University of Toledo taught by Song Cheng in Summer 2015. Since its upload, it has received 61 views. For similar materials see Physics II in Astronomy at University of Toledo.


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Date Created: 08/29/15
Chapter 21 Electric Charge and Coulomb s Law Force Magnitude F12F21 k lqll q2 r2 k 899 x 10 9 Nm2c2 or 14neo Coulomb s Law For any point of point charges there is electrostatic force between them Same charges repel Opposite charges attract Superposition Principle A Q l Atoms F12 leQzA2 Qz F13ltQlQ3C2 X component F1x F13cosxF12 Q3 Y component Fly F13sinx Magnitude F1 F1 F1x2F1y2 Direction of F1 tan6 FlyF1X Atoms protonsneutronseectrons Atoms are neutral Methods of Charging 1 Friction 2 Contact 3lnducUon Spherical Charge Distribution A A shell of uniform charge attracts or repels a charged particle that is outside of the shell if the shell s charge were concentrated at the center Ql FQQltQleOP2 Qz B Shell of uniform charge exerts no electrostatic force on charged particle The particle is located inside the shell Q FQQO Conductor and Insulator Conductor materials with rather freely movable electrons around a little wind can set it off nsuator no freely electrons hard to change


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