Physics - Magnetism Question with Solution | TestHub

$\mathrm{A},\mathrm{B}$ and $\mathrm{C}$ are three parallel conductors of equal lengths carrying currents I, I and 2I respectively. Distance between A and $B$ is ' $x$ ' and that between B and $C$ is also ' $x$ '. $F_1$ is the force exerted by conductor $\mathrm{B}$ on $\mathrm{A}$. ${\mathrm{F}}_2$ is the force exerted by conductor $\mathrm{C}$ on $\mathrm{A}$. Current $\mathrm{I}$ in $\mathrm{A}$ and $\mathrm{I}$ in $\mathrm{B}$ are in same direction and current $2\mathrm{I}$ in $\mathrm{C}$ is in opposite direction. Then