PHYS212 - 4 0 r 2 qq F = 1 22 4 0 r E= q R= L A 2 0 = 8.85...

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2 0 4 q E r πε = G 12 2 0 4 qq F r = G q F E G G = 3 0 dipole 2 1 z p E = E p τ G G G × = E p U G G = V q A q L q = = = ρ σ λ ; ; = Φ A d E E G G 0 enc ε q E = Φ 3 sphere 3 4 r V π = 2 sphere 4 r A = 2 2 1 mv KE = q U q W V Δ = = Δ = Δ f i s d E V G G ds dV E s = r kq r q V = = 0 point 4 2 0 dipole cos 4 1 r p V θ = CV q = d A C 0 plates parallel κε = " + + + = 3 2 1 series 1 1 1 1 C C C C " + + + = 3 2 1 parallel C C C C QV C Q CV U 2 1 2 1 2 1 2 2 = = = d v ne J G G = A L R = R V R i iV P 2 2 = = = dt dU P = i V R = " + + + = 3 2 1 series R R R R " + + + = 3 2 1 parallel 1 1 1 1 R R R R dt dq i = RC C = τ C t e q q / 0 = Discharging ) 1 ( / C t e C q = Charging C t e i i / 0 = Charging B v q F B G G G × = r mv F 2 l centripeta = qB mv r = B L i F B G G G × = NiA = μ B μ τ G G G × = =− ⋅ G G U μ B = θτ d W 3 0 4 r r s id B d G G G × = dt d i s d B E Φ + = 0 0 enc 0 εμμ G G π R i μ B 2 0 wire = R i B 2 0 loop = solenoid 0 μ = B ni 0 toroid 2 μ π = Ni B R 2 2 12 0 m N C 10 85 . 8 × = 2 2 9 0 C m N 10 99 . 8 4 1 × = C 10 60 . 1 e 19 × = A m T 10 4 7 0 × = πμ dt d B Φ = = Φ A d B B G G Φ = dt d s d E B G G i N L B Φ = A A n L 2 0 solenoid = dt di L = R L L = ) 1 ( / L t e R i = L t e i i / 0 = 2 2 1 Li U = LC 1 0 = ω ) sin( t m = ) sin( φ
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