Fa08_7C_7

Fa08_7C_7 - Quiz 6 1 Physics 7C Fall 2008 Lecture 6: Field...

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1 Quiz 6
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Physics 7C Fall 2008 Lecture 6: Field model PE electric Magnetic Force & Field
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3 Calendar Sections 1-4: DLM 17 on Tuesday Section 5: DLM 17 on Weds 8-10:20 Sections 8, 9, 11: DLM 17 either Monday OR Weds: Ask TA
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4 Models of Electric Phenomena: Electric Field and Forces Each source charge Q generates an Electric Field E Q Direction convention shown at right The net Electric Field is the sum of all the source fields Charge q, placed in an electric field E tot , experiences a force F elec on q =q E Q . For + test charge, force points in the same direction as field. For - test charge, force points in opposite direction of field Field, Forces, Potential Energy, and Potential
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5 Models of Electric Phenomena: Field, Forces, Potential Energy, and Potential started in 7A Potential--started in 7B PE & V have similar PE F E V
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6 Reviewing what you’ve previously studied… Gravitational Potential Energy 1 2 3 g
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7 Relationship between Potential Energy and Force Potential Energy r - 0
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8 Relationship between Potential Energy and Force 1 2 3 Potential Energy r - 0 Negative means decrease of PE with decreasing r
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9 Relationship between Potential Energy and Force 1 2 3 Potential Energy r - 0 More slope closer to earth means F is greater there F = - PE / r , the - slope Force increases with greater slope
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10 Reviewing what you’ve previously studied… Relationship between Potential Energy and Force . 1 2 3 4 Magnitude of Force = slope of PE vs. r graph. F = - d PE d r
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Defining a new quantity Gravitational Potential: How much Potential Energy would a mass m have if placed (x,y)? 1
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This note was uploaded on 05/30/2009 for the course PHY 7C taught by Professor Mahmud during the Fall '08 term at UC Davis.

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Fa08_7C_7 - Quiz 6 1 Physics 7C Fall 2008 Lecture 6: Field...

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