M1 - 3 . It was considered a major discovery in 1820 when...

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Physics 7B WS M1 (rev. 2.0) Page 1 M-1. Introduction to Magnetism Questions for discussion 1 . Suppose you have a compass that points North when you are standing in Paris. If you take that compass to Capetown, will it point South? 2 . A compass often comes in handy when you are hiking. But in order to find geographic North using the compass, you have to correct its reading. Why is this? Is there anywhere in the United States you could be hiking, where you would not have to correct the compass reading?
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Unformatted text preview: 3 . It was considered a major discovery in 1820 when Oersted noticed that compasses deflect near currentcarrying wires. What would you say was the main implication of this discovery? 4 . The diagram below shows the readings a compass would give when placed in various locations near a current-carrying wire. a) Based on this diagram, try sketching some magnetic field lines for the magnetic field produced by the wire. b) Which way is the current flowing in this wire?...
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