Distance separating current carrying wires.

[linuxux]

Homework Statement

How far from a wire with a current of 5.0A is a second parallel wire with current 10A if force between them is $$3.6x10^{-4} N$$?

Homework Equations

i think $$\frac{F}{L}=\left(\frac{u_o}{2\pi}\right)\left(\frac{I_{1}I_{2}}{s}\right)$$

The Attempt at a Solution

i think this just a simple plug and chug question, but is $$\frac{F}{L}$$ equal to $$3.6x10^{-4} N$$? what's the L for?

 

[chaoseverlasting]

F/L is force per unit length and yes, here F/l is 3.6x10^{-4}.