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2009SU112EqExam - PHYSICS 112 FINAL EXAM EQUATION SHEET...

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PHYSICS 112 FINAL EXAM EQUATION SHEET Constants k = 8.99 x 10 9 N . m 2 C 2 ε o = 8.85 x 10 -12 C 2 N . m 2 Force Magnitude F = k |q 1 | |q 2 | r 2 (force between point charges) E Field E = F q E = k |q| r 2 (point charge) V = E d (parallel plates) Work and Energy KE = 1 2 mv 2 W = Fs cos θ = Δ KE W NC = Δ KE + Δ PE W E = – Δ PE W AB = EPE A – EPE B =q ( V A – V B ) Potential PE = qV E x = – Δ V/ Δ x V = k Q r (point charge) Capacitance q = CV E cap = 1 2 CV 2 = 1 2 q 2 C = qV 2 C = κε o A d (parallel plates) Current I = Δ q Δ t Resistance R = V I R = ρ L A ρ = ρ o [1 + α (T - T o )] R s = R 1 + R 2 + ... (in series) 1 R P = 1 R 1 + 1 R 2 + ... (in parallel) Circuits V = IR P = IV = I 2 R = V 2 / R
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PHYSICS 112 FINAL EXAM EQUATION SHEET Magnetic Field : The magnetic field is a vector. F = qvB sin θ F = ILB sin θ τ = NIAB sin φ ( NIA = magnetic moment) B = μ o I 2 π r
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