phys112_equation_mt

phys112_equation_mt - Charge on a capacitor Q = C V...

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Physics 112 Equation Sheet Electric Field E = F/q (direction of force on positive charge) Field lines (= direction of the el. Field) go from (+) to (-) Potential Difference V = PE/q Potential Energy difference PE = V q Special Case : Point Charge(s) Coulomb’s Law F = k (Q 1 Q 2 )/r 2 Electric Field E = k (Q)/r 2 Potential of a sphere V = kQ/r Potential Difference V=kQ/r b -kQ/r a Special Case: Parallel Plates Force F = E q Electric Field E = V/d Potential difference V = E d No electric field inside a conductor (static case)
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Unformatted text preview: Charge on a capacitor Q = C V Parallel Plate Capacitor C = k A/d Energy stored in a capacitor PE = QV Electric Current I = Q/t Ohms Law V = R I Resistance R = L/A Electric Power P = I V Series Circuits: Current is the same through all elements I tot = I 1 = I 2 V = V 1 + V 2 R tot = R 1 + R 2 V 1 = I tot R 1 = R 1 /R tot V V 2 = I tot R 2 = R 2 /R tot V Parallel Circuits: Same voltage across all elements V = V 1 = V 2 I tot = I 1 + I 2 1/R tot = 1/R 1 + 1/R 2 I 1 = V / R 1 I 2 = V / R 2...
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This note was uploaded on 06/03/2011 for the course PHY 112 taught by Professor Beacom during the Spring '11 term at Ohio State.

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