Magnetic Force Of Parallel Wires

#Physics

$\displaystyle f=\frac{{\mu}{0}}{2\pi} \frac{I{1}I_{2}}{d}$

• Magnitude of the force per unit length
• Direction of force is determined by the right hand rule. Current flowing parallel will result in attraction, current flowing antiparallel will result in repulsion
• $\displaystyle {\mu}_{0}$ is the magnetic constant
• $\displaystyle I_{1}$ is the current going through one of the wires
• $\displaystyle d$ is the distance between the wires