Chap22_PHY2049

Chap22_PHY2049 - Chapter 22 Gauss Law- Charge and Electric...

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Unformatted text preview: Chapter 22 Gauss Law- Charge and Electric flux- Electric Flux Calculations- Gausss Law and applications- Charges on Conductors Child acquires electric charge by touching a charged metal sphere. Electrons coat each individual hair fiber and then repel each other. 1. Charge and Electric Flux- A charge distribution produces an electric field (E), and E exerts a force on a test charge (q ). By moving q around a closed box that contains the charge distribution and measuring F one can make a 3D map of E = F/q outside the box. From that map, we can obtain the value of q inside box.- If we construct a boundary around a charge, we can think of the flow coming out from the charge like water through a screen surrounding a sprinkler. Electric Flux and Enclosed Charge:-There is a connection between sign of net charge enclosed by a closed surface and the direction of electric flux through surface (inward for -q, outward for +q).- There is a connection between magnitude of net enclosed charge and strength of net flow of E....
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Chap22_PHY2049 - Chapter 22 Gauss Law- Charge and Electric...

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