Magnetic field:

$\overline{){\mathbf{B}}{\mathbf{=}}\frac{{\mathbf{\mu}}_{\mathbf{0}}\mathbf{i}}{\mathbf{2}\mathbf{\pi}\mathbf{r}}}$

The magnetic field at the center of the loop will be the sum of fields due to current-carrying wire and the circular loop.

What is the magnetic field at the center of the loop in the figure? (Figure 1)