148CHAPTER 19 19.11From FBsinILθ=, the magnetic field is ()30.12 N m8.010Tsin15 A sin90FLBI−===×°BGThe direction of must be the directionz+to have FGin the –ydirection when IGis in the +xdirection. 19.12Hold the right hand with the fingers in the direction of the current so, as you close the hand, the fingers move toward the direction of the magnetic field. The thumb then points in the direction of the force. The results are (a) to the left (b) i(c) nto the pageout of the page (d) toward top of page (e) into the page (f) 19.13Use the right hand rule, holding your right hand with the fingers in the direction of the current and the thumb pointing in the direction of the force. As you close your hand, the fingers will move toward the direction of the magnetic field. The results are (a) into the page (b) toward the right (c) toward the bottom of the page 19.14In order to just lift the wire, the magnetic force exerted on a unit length of the wire must
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