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2200formulasheet - PH2200 Formula Sheet Electric Fields ! 1...

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Electric Fields 12 12 2 0 2 2 2 1 ˆ 4 lim ˆ ˆ ˆ o e e o e q o e ei ii i e kqq Fr k r F E q kq Er r EE r r kdq Ed E r r πε == = = ∑∑ ∫∫ ! ! ! ! ! " ! " Gauss's Law at conductor surface E in EdA q A E ε σ ° ° Φ= ⋅ ⋅= = ! ! ! ! # Electric Potential 12 () B o A B AB o A e i i e e x UqE d s U VE d s q Vr r V r V r U r dV E dx ∆= = = = = = =− ! ! ! ! Capacitance and Dielectrics parallel-plate capacitor Q C V A C d ° = = 123 2 2 11 22 2 1 2 1 cylindrical capacitor 2l n spherical capacitor ... parallel 1111 ... series 2 e e eq eq E o C b l k a ab C kb a CC C C C C Q UQ V C V C uE κ ° =    = =+++ =∆ = = Current and Resistance 2 2 1 [1 ( )] av av d d oo Q I t dq I dt I nqv A J nqv JE V R I l R A TT IV V IR R ρ ρρ α = = = = = = = = =+− ! ! !! P P Direct Current Circuits ... series ... parallel 0 eq eq in out closed loop RR R R R R II V = / / / / ( ) (1 ) charging ( ) charging ( ) discharging ( ) discharging tR C C C C qt C e It e R Qe Q e RC = = E E Magnetic Fields sin , B B B B B Fq v B v B FI L B dF Ids B NIA B
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This note was uploaded on 04/28/2008 for the course PHY 132 taught by Professor Rijssenbeek during the Spring '04 term at SUNY Stony Brook.

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2200formulasheet - PH2200 Formula Sheet Electric Fields ! 1...

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