Lecture 7 SSI 10 Pre Lecture

Lecture 7 SSI 10 Pre Lecture - Physics 7C SSI 2010: Lecture...

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Unformatted text preview: Physics 7C SSI 2010: Lecture 7: Electric Field Model Todays Agenda Electric Fields Electric Potential Energy Electric Potential (Voltage) Quiz 4 Electric Fields from Multiple Charges: Superposition- + 1 2 3 4 5 6 7 E tot = 0 8 Not enough Info The + and - charges have the same magnitude. Which direction does the net Electric Field point at the marked spot? Checking Understanding- + 1 2 3 4 5 6 7 F = 0 8 Not enough Info A charge is placed at the marked location. What is the direction of the force exerted on the charge? Electric Field Lines Direction of field line at any point tells us the direction of the field at that point Density of field lines at any point tells us the relative strength of the field at that point What do the field lines tell us about the direction of the field at the marked point in the previous slides? Electric Fields: Dipoles +- Which way will the dipole orient?...
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Lecture 7 SSI 10 Pre Lecture - Physics 7C SSI 2010: Lecture...

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