The force between two parallel current carrying conductors placed at a x distance apart and carrying same current I is :

A. $$\frac{{2\pi \times {{10}^{ - 7}}{{\text{I}}^2}}}{{\text{x}}}\frac{{\text{N}}}{{\text{m}}}$$

B. $$\frac{{2 \times {{10}^{ - 7}}{{\text{I}}^2}}}{{\pi {\text{x}}}}\frac{{\text{N}}}{{\text{m}}}$$

C. $$\frac{{2 \times {{10}^{ - 7}}{{\text{I}}^2}}}{{\text{x}}}\frac{{\text{N}}}{{\text{m}}}$$

D. $$\frac{{4\pi \times {{10}^{ - 7}}{{\text{I}}^2}}}{{\text{x}}}\frac{{\text{N}}}{{\text{m}}}$$

Answer: Option C