Homework Help: physics numerical

Posted by brock on Thursday, October 20, 2011 at 4:41am.

a long horizontal wire is rigidly placed, carrying a current of 50a. another parallel long wire carrying a current of 40a is just supported above it.determine the distance between them at which the upper wire can be just supported by magnetic repulsion itself.(weight of upper wire=0.05 N/m)

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