Phy 102 Sample Test 2 Formulae Sheet 2005

Phy 102 Sample Test 2 Formulae Sheet 2005 - Dr. Huerta Phy...

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Unformatted text preview: Dr. Huerta Phy 102 Sample Test 2 Spring 2005 Spring Semester 2005, Sections S and T FORMULAE SHEET Vectors: Unit vectors: x-axis: x i , y-axis: y j ~ A ~ B = | ~ A || ~ B | cos = | ~ A | B A = | ~ B | A B , | ~ A ~ B | = | ~ A || ~ B | sin , | ~ A | = q A 2 x + A 2 y , direction of ~ A ~ B is perpendicular to both vectors by right hand rule. Electric Fields: e = 1 . 6 10- 19 C, m e = 9 . 1 10- 31 kg, m p = 1 . 67 10- 27 kg, k = 1 4 = 9 10 9 N m 2 C 2 . ~ E = kQ r 2 , ~ F q = q ~ E, V = kQ r , | ~ E | = | V s | , V =- ~ E ~ r, E = 2 for a sheet of charge . U q = qV, KE = 1 2 mv 2 . Electric Field Flux through an area A with unit normal n : A = ~ E n A Gauss law for Electric Field Total outward Electric Field flux through a closed surface: closed surface = q inside Potential Energy and Torque for an Electric Dipole: U =- ~ p ~ E , ~ = ~ p ~ E . Capacitance: Q = CV, C = A d , U = 1 2 CV 2 = Q 2 2 C u E = 1 2 E 2 . Circuits: i = q t , V = iR, R = L A , P = V i, P R = i 2 R resistors in series: R S = R 1 + R 2 , resistors in parallel: 1 R P = 1 R 1 + 1 R 2 In a charging capacitor q ( t ) = C E (1- e- t/RC ) , with lim t q ( t ) = C E , and lim t q ( t ) = 0 , also i ( t ) = E R e- t/RC, with lim t i ( t ) = 0 , and lim t i ( t ) = E R. Forces in Magnetic Fields: ~ F = q~v ~ B, ~ F = I ~ ` ~ B, centripetal acceleration = v 2 r magnetic dipole U =- ~ m ~ E ~ = ~ m B ~ B, with ~ m B = NIA n Sources of Magnetic Fields: = 4 - 7 T m/A field of long wire B = I 2 r , field at center of loop B = N I 2 R , field inside of long solenoid B = NI l ....
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This note was uploaded on 10/13/2011 for the course PHY 102 taught by Professor Alexandrakis during the Spring '06 term at FIU.

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Phy 102 Sample Test 2 Formulae Sheet 2005 - Dr. Huerta Phy...

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