Question

Calculate the x-component of the force on a 1.0-cm long piece of the lower right-hand wire, due to the other three wires.

Answer 1

The four wires that lie at the corners of a square of side a= 4.20 cm are carrying equal currents i= 1.70 A into (+) or out of (-) the page, as shown in the picture.

Answer 2

y comp=3.24×10-5 T