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Unformatted text preview: force acting on moving charge in magnetic eld: ~ F B = q~v ~ B charged particle circulation in magnetic eld: | q | vB = mv 2 r magnetic force on wire: ~ F B = i ~ L ~ B , ~ L = length vector magnetic eld of long straight wire: B = i 2 R , = 4 x 10-6 T m/A eld of Solenoid: B = in , n =number of turns per unit length Induction and Inductance: magnetic ux: B = BA , ( A = area transverse to ~ B ) Faradays law: =-N d B dt inductance: L = N B i , for solenoid L l = n 2 A self-induction: L =-L di dt series RL circuit (rise of current): i = R (1-e-t/ L ) , L = L/R magnetic energy: U B = 1 2 Li 2...
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This note was uploaded on 09/22/2010 for the course PHY 58710 taught by Professor Markert during the Spring '09 term at University of Texas at Austin.
- Spring '09