1 of 2 PHYS1120 Exam I review Things to remember for PHYS1110 algebra trig sin cos vector math especially vector addition Fnet ma problems free body diagrams Ch 21 Charges and Fields q1 q 2 r2 Coulomb s Law F k K K Fon q Definition of electric field E q K K Fon q q E K Q E field due to a point charge E k 2 r derived from Coulomb definition of E r K K K K K E field due to many charges E tot E i E1 E2 E 3 i fields add like vectors not numbers K Know how to set up an integral E tot K dE E tot x dE x dE k dQ r2 dQ dx or dA or dV depending on geometry Field line diagrams Ch 22 Gauss s Law K K Electric flux E A if E constant surface flat Gauss s Law K K v E da S K K E da Qenclosed 0 Main results for spherical cylindrical and planar symmetry E inside charged spherical shell 0 E outside charged spherical charge same as point charge E outside cylindrical charge distribution 1 r infinite plane E 2 0 9 14 2009 Phys1120 Dubson University of Colorado at Boulder 2 of 2 Metals in equilibrium E 0 inside metal qnet inside 0 qnet on surface only E surface E outside 9 14 2009 Phys1120 Dubson 0 University of Colorado at Boulder
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