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Transcript
Motor Principle Applications A wire carries an electron current from west to east in a magnetic field that runs south to north. In what direction is the magnetic force on the wire? A bare current-carrying wire runs across a lecture table. How could you could find the direction of the electric current? How could you see the magnetic field? Causes of Magnetism Why is iron ferromagnetic? What is a magnetic domain? How does a magnetic domain cause ferromagnetic materials to become magnets? Describe a method by which magnetic domains can be observed. Return to day 5
![NAME: Quiz #5: Phys142 1. [4pts] Find the resulting current through](http://s1.studyres.com/store/data/006404813_1-90fcf53f79a7b619eafe061618bfacc1-150x150.png)
