9C_D_Summary_Electricity

# 9C_D_Summary_Electricity - Electric force FE q 1q2 ^ 12 r 2...

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Electric force F E Electrostatic field E = F E q 0 Electric potential energy U f - U i ( 29 q 0 -q 0 E static dl i f Electric potential V f - V i U f - U i q 0 = - E static dl i f F 12 = k q 1 q 2 r 12 2 ˆ r 12 E 12 = F 12 q 2 = k q 1 r 12 2 ˆ r 12 U 2 r 2 ( 29 - U 2 ( 29 = kq 2 q 1 r 2 - r 1 V r 2 ( 29 - V ( 29 = kq 1 r 2 - r 1 F 0 = k q n q 0 r n0 2 ˆ r n0 n = 1 E 0 = k q n r n0 2 ˆ r n0 n = 1 U 0 r 0 ( 29 -U 0 ( 29 = q 0 kq n r 0 - r n n = 1 V r 0 ( 29 - V ( 29 = kq n r 0 - r n n = 1 F 0 = q 0 E 0 Cathod-Ray Tube Force on eletric dipole p Torque on electric dipole p: τ = p × E Line segments Ring (full and broken) Disc and thick ringss Electric dipole p Combination of them: E = E 1 + E 2 + E 3 +⋅⋅⋅ U 0 r 0 ( 29 = q 0 V r 0 ( 29 Line segments Ring (full and broken) Disc and thick ringss Electric dipole p Combination of them: V = V 1 + V 2 + V 3 +⋅⋅⋅ Gauss' law E dA S ∫∫ = Q inside ε 0 Cylinders/lines/shells Spheres/spherical shells Flat sheets Combination of them:

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9C_D_Summary_Electricity - Electric force FE q 1q2 ^ 12 r 2...

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