Question: Two long, parallel copper wires of diameter 2.5 mm carry currents of 10 A in opposite directions. (a) Assuming that their central axes are 20

Two long, parallel copper wires of diameter 2.5 mm carry currents of 10 A in opposite directions.

(a) Assuming that their central axes are 20 mm apart, calculate the magnetic flux per meter of wire that exists in the space between those axes.

(b) What percentage of this flux lies inside the wires?

(c) Repeat part (a) for parallel currents.

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