Lec-7 - motion ( v rms ). v rms 10 6 m / s p. Changes in V...

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Previous Lecture U cap = 1 2 CV 2 for capacitor Energy is stored in electric field: u = 1 2 ± 0 E 2 Dielectric constant K Current I is flow of charge – p.
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Current: Realistic Model Small drift velocity v d superimposed on large random motion ( v rms ). v rms 10 6 m / s – p.
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Drift velocity To estimate v d , we use a different model, in which all charges move uniformly in one direction: – p.
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Drift velocity To estimate v d , we use a different model, in which all charges move uniformly in one direction: – p.
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Drift velocity and Current – p.
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Current: Realistic Model Small drift velocity v d superimposed on large random
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Unformatted text preview: motion ( v rms ). v rms 10 6 m / s p. Changes in V around a Loop Fig. 25.21 p. Harder Problems? p. Harder Problems? Use Kirchhoffs Rules p. Harder Problems? Use Kirchhoffs Rules Node equations p. Harder Problems? Use Kirchhoffs Rules Node equations Loop equations p. Resistance and Resistivity Resistivity is a material property; the resistance R depends on the length L and cross sectional area A of the conductor: R = L A p....
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Lec-7 - motion ( v rms ). v rms 10 6 m / s p. Changes in V...

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