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-29845-152400Electric Field Vector0Electric Field VectorSeed Question: How is the Electric Field Vector related to Faraday’s electric lines of force? Exploration: Sketch electric lines of force around this dipole:-12700237490+Q-QABC+Q-QABCNow sketch the electric field vector at points A, B and C.Note that the electric field vector is always tangent to the electric line of force at the point of interest.Save ? page for the next diagram.Bottom half of first page…Let’s consider the Van de Graaff Generator.1113155133985----Ground (literally!)-------------CombComb----- - -- - - - - -- - - -- - - -- - -++1. Polyurethane roller picks up a positive charge by rubbing against belt.2. Electrons from the ground are induced to jump off the comb onto the latex belt3. Latex belt carries electrons up inside of electrode.4. Electrons jump off belt onto comb and then travel out to outer surface of electrode.00----Ground (literally!)-------------CombComb----- - -- - - - - -- - - -- - - -- - -++1. Polyurethane roller picks up a positive charge by rubbing against belt.2. Electrons from the ground are induced to jump off the comb onto the latex belt3. Latex belt carries electrons up inside of electrode.4. Electrons jump off belt onto comb and then travel out to outer surface of half 2nd page…Questions:What does an electric charge experience when it is brought inside the dome?Is it hard for the motor to bring charges up to the dome?Is there a limit to how much charge that can be placed on the dome?If E max air = 3 x 106 N/C, what is the maximum amount of charge that can be put onto the dome?Bottom half of 2nd page…Big Idea: The Electric Field Vector Definition:1206500190500Where qo is always a small + test charge. Why small?00Where qo is always a small + test charge. Why small?E=FEqoNote that the electric field E at a particular point is a vector and points in the direction that a positive charge would accelerate if released at that point. The electric field vector E is tangent to the electric line of force at the point of interest. For air, Emax = 3 x 106 N/C. If you try to exceed this limit, discharge will occur!Discussion: ? ................
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