Quiz Solution: Magnetic Field Between Two Current-Carrying Wires - Prof. James Harrell, Quizzes of Physics

Download Quiz Solution: Magnetic Field Between Two Current-Carrying Wires - Prof. James Harrell and more Quizzes Physics in PDF only on Docsity! NAME _______________________ PH102-001 Quiz 4a Feb. 13, 2009 Two long, parallel wires that are 10 cm apart each carry a current of 20 A in the same direction. Find the magnitude and direction of the net magnetic field at point P, which is 2 cm from the right wire and 8 cm from the left wire. Given: μ0 = 4π x 10-7 T⋅m/A B = __1.5 x 10-4______ T Direction = ___out of page_____________ Solution: Let out of page be positive and into page negative. )(105.1 100.2105 )02.0(2 )20)(104( )08.0(2 )20)(104( 22 4 45 77 2 20 1 10 21 outTx TxTx xx r I r IBBB − −− −− = +−= +−= +−=+= π π π π π μ π μ 20 A 20 A P