A wire segment of \(1.0 \mathrm{~m}\) and carrying a current of \(5.0 \mathrm{~A}\) is held in a plane in which it can rotate and translate with little friction. A long wire is fixed parallel to this plane, perpendicular to the \(1.0 \mathrm{~m}\) wire and \(50 \mathrm{~mm}\) above its centre.

(a) Describe how the \(1.0 \mathrm{~m}\) wire starts to move when a 10-A current is switched on in the long wire.

(b) Calculate the magnetic force on the \(1.0 \mathrm{~m}\) wire after static equilibrium is reached.