Chapter 30191*P30.11(a)Above the pair of wires, the field out of the page of the 50 Acurrent will be stronger than the −±kejfield of the 30 Acurrent, so they cannot add to zero. Between the wires,both produce fields into the page. They can only add tozero below the wires, at coordinate yy=−. Here the totalfield isB=µπ02Ir+02Ir:02500283050300 285030 0 282030 0 280 4200=+−+LNMMOQPP=+−=−=−AmAmmmatmyy.±±....diejbgbgafkkFIG. P30.11(b)At y=01. m the total field is B=02Ir+02Ir:Bkkk=×⋅−−FHGIKJ=×−−−41025030010116 1074TmAA0.10 mAmT.±.±.±.The force on the particle isFvBikj=×=−××× ×⋅ ⋅ −=
This is the end of the preview. Sign up
access the rest of the document.
This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .