Midterm 1 Formula Sheet

Midterm 1 Formula Sheet - L Q = , A Q = , V Q = Charge...

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PHY1020U Formulas and Equations Midterm 1 NOTE that there are some basic laws, definitions and formulas that you are expected to remember, like Newton’s Laws. 2 2 9 / 10 99 . 8 C m N k e × = Coulomb Constant (SI Units) 0 4 1 πε = e k 2 2 12 0 / 10 854 . 8 m N C × = ε Permittivity of free space e = 1.60x10 -19 C electron charge m e = 9.11x10 -31 kg mass of an electron A = 2 π r l surface area of a cylinder V = π r 2 l volume of a cylinder A = 4 π r 2 surface area of a sphere V = 4/3 π r 3 volume of a sphere C = 2 π r circumference of a circle r r q q k F e ˆ 2 12 2 1 12 = G Coulomb’s Law for two point charges r r q k E ab e ˆ 2 = G Electric Field at point b due to charge q at point a E q F G G = Relation between force and electric field.
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Unformatted text preview: L Q = , A Q = , V Q = Charge densities r r dq k E e 2 = G Electric Field of a continuous charge distribution = = encl C q A d E G G Gausss Law j i j i allpairs e r r q q k U = Potential Energy due to several point charges i i i e r q k V = Electric Potential due to several point charges r dq k V e = Electric Potential of a cont. charge distribution C = Q/V Capacitance C = 0 A/d Capacitance of parallel plate capacitor with dielectric ( =1, for empty capacitor)...
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