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Old Mar 15th 2010, 05:23 PM   #1
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Join Date: Mar 2010
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Last magnetism question

Two long, parallel wires, each having a mass per unit length of 40.0 g/m, are supported in a horizontal plane by strings 6.00 cm long. When both wires carry the same current I, the wires repel each other so that the angle θbetween the supporting strings is 16.0.

(a) Are the currents in the same direction or in opposite directions?

(b) Find the magnitude of the current.


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