Ì Grad Ì Undergrad Ì Faculty Ì OtherÌ I have done this pretest/tutorial before(continued on other side)Tutorials in Introductory Physics ©McDermott, Shaffer, & P.E.G., U.Wash.EM-UCO1110044T-P9(MMF)V1d Autumn 2004PRETEST:MAGNETS AND MAGNETIC FIELDS1. At the four labeled points (A-D), sketch a vector representing the magnetic field aroundthe bar magnet.ABDCNS2. A second bar magnet identical to the first one is now placed to the left of point A. At thefour labeled points (A'-D'), sketch a vector representing the magnetic field of bothmagnets.A'B'D'C'NSNS3. Rank the magnitude of the magnetic field at the points A, B, A', and B'. If the magnitudeof the magnetic field at any point is zero, state that explicitly. Explain your reasoning.(If you cannot determine the ranking, explain why not.)Tutorials in Introductory Physics ©McDermott, Shaffer, & P.E.G., U.Wash.EM-UCO1110044T-P9(MMF)V1d Autumn 20044. An uncharged piece of cork is hung from a string. When a positively charged rod isbrought near but not touching the cork, the rod attracts the cork and the cork hangs asshown.Piece of CorkCharged rodA. On the diagram, sketch how the piece of cork would hang if the north end of amagnet were brought near the cork. Explain your reasoning.North end of magnetB. On the diagram, sketch how the piece of cork would hang if the south end of amagnet were brought near the cork. Explain your reasoning.South end of
View Full Document
Unlocking...