Two infinite long wires are parallel to one another and are 5.0 cm apart. Both have current passing through them in the same direction. One has 1.0 A passing through and the other has 2.0 A passing through.
a) What is the magnetic field produced by the 2.0 A wire at the 1.0 A wire?
b) What is the resulting force on the 1.0 A wire?
c) What can you say about the corresponding magnetic force on the 2.0 A wire?