Unit1FormulaSheet

Unit1FormulaSheet - Physics 2B Formula Sheet UNIT 1...

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Physics 2B Formula Sheet UNIT 1 – Electric Charges, Force & Fields Constants Elementary Charge C 10 60 . 1 19 × = e C = Coulomb Permittivity of Free Space 2 2 12 0 m N / C 10 85 . 8 × = ε Coulomb Constant 2 2 9 C / m N 10 00 . 9 × = k 0 1 4 πε = Fundamental Formulas Coulomb’s Force Law 12 2 ˆ qq k r = Fr K Newtons Electric Field Defined q F E K K = Force on “test” charge divided by that charge Electric Field: Point Source 2 ˆ q kr r = E K Newton / Coulomb Electric Field: Continuous Charge Distribution = = r E E ˆ 2 r dq k d K K where dV dA dL dq , , ρ σ λ = Linear Charge Density charge unit length q L = = dq dL = Coulombs / meter Surface Charge Density charge unit area q A = = dq dA = Coulombs / meter
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This note was uploaded on 08/23/2008 for the course PHYS 2b taught by Professor Schuller during the Summer '08 term at UCSD.

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