I towards us d b f another i away from us conclusion

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Unformatted text preview: nother I towards us Conclusion: Currents in same direction attract! I towards us d • B ×F Another I away from us Conclusion: Currents in opposite direction repel! :16 Physics 212 Lecture 14, Slide 8 Physics Preflights 2 & 4 50 X B 40 30 F 20 10 What is the direction of the force on wire 2 due to wire 1? A) Up B) Down C) Into Screen D) Out of screen 0 E) Zero 50 What is the direction of the torque on wire 2 due to wire 1? A) Up B) Down C) Into Screen D) Out of screen 40 E) Zero 30 20 Uniform force at every segment of wire No torque about any axis :18 10 0 Physics 212 Lecture 14, Slide 9 Physics Preflight 7 BB 50 40 30 20 What is the direction of the force on wire 2 due to wire 1? 10 0 A) Up B) Down C) Into Screen D) Out of screen E) Zero WHY?? DRAW PICTURE !! :21 Physics 212 Lecture 14, Slide 10 Physics Consider Force on Symmetric Segments! B I B I F out of screen r F...
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This note was uploaded on 02/09/2012 for the course PHYSICS 212 taught by Professor Mestre during the Spring '11 term at University of Illinois at Urbana–Champaign.

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