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Physics 19 Online
OpenStudy (anonymous):

in studying the cross section of a straight current carrying wire, you notice that the magnetic field lines run counter-clockwise. What is the direction of the current in the wire and how do you know

OpenStudy (anonymous):

using the law of screw or right hand rule |dw:1404860009680:dw| http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magcur.html

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