Moving Charges And Magnetism

A long straight wire carrying a current of \(25 \mathrm{~A}\) rests on the table. Another wire PQ of length \(1 \mathrm{~m}\) and mass \(2.5 \mathrm{~g}\) carries the same current but in the opposite direction. The wire PQ is free to slide up and down. To what height will wire PQ rise? (\(\mu_0=4 \pi \times 10^{-7}\) SI unit)