Class 9 side - 1 PHY132 Introduction to Physics II Class 9...

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Unformatted text preview: 1 PHY132 Introduction to Physics II Class 9 Outline: Chapter 26 Electric Charge Insulators and Conductors Coulombs Law The Electric Field [ Youtube video of lightning over Texas ] Electromagnetic interaction caused by fundamental property of matter: matter contains charges Compared to other forces in nature electromagnetic forces dominate our daily existence Forces : Gravitational Weak Electromagnetic Strong Strong force limited to short spatial scales Gravitational and weak forces occur over large and small spatial scales, respectively, but are weaker than electromagnetic forces Increasing strength Electromagne,c Forces The Atom An atom consists of a very small and dense nucleus surrounded by much less massive orbiting electrons . The nucleus consists of protons with positive electric charge, and neutral neutrons . Electrons and protons have charges of opposite sign but exactly equal magnitude....
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Class 9 side - 1 PHY132 Introduction to Physics II Class 9...

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