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Magnetic force between two current carrying conductors.

Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. The length of each rod is 0.85 m, while the mass of each is 0.073 kg. One rod is held in place above the ground, and the other floats beneath it at a distance of 8.2 x 10^-3 m. What is the current in the rods?

Solution Summary

The problem is to find the magnetic force between two rods such that this force balances the weight of one of the rod.

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