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September 19, 2014

Homework Help: physics

Posted by Sam on Monday, April 27, 2009 at 10:22pm.

Calculate the magnitude of the force per meter pushing two straight wires in an extension chord apart when 1 A of DC current lights a 100W study lamp. The separation of the wires is 2mm, and the insulation behaves like a vacuum. Again, I don't know how I can do this without knowing he length.

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