A square loop, carrying a steady current I, is placed in a horizontal plane near a long straight conductor carrying a steady current I₁ at a distance d from the conductor as shown in figure. The loop will experience

Force on the edges parallel to the straight wire will be attractive if currents are parallel and repulsive if currents are antiparallel. Force on the edges perpendicular to the straight wire will be zero.

${\mathrm{F}}_1>{\mathrm{F}}_2 (\mathrm{wires} \mathrm{more} \mathrm{close} \mathrm{to} \mathrm{each} \mathrm{other} \mathrm{will} \mathrm{have} \mathrm{larger} \mathrm{force})$

Net force on the loop will be attractive towards the straight conductor.