Question: Two wires carrying equal currents exert a force on each other. (a) The current in each wire is quadrupled while the separation distance remains constant.

Two wires carrying equal currents exert a force on each other. (a) The current in each wire is quadrupled while the separation distance remains constant. What is the magnitude of the force, , in terms of , that one wire exerts on the other? Please show detailed calculations. (b) When a magnetic field is parallel to a current-carrying wire, what is the force on the wire? (5 pts)

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