## In This post you will get answer of Q.

Two long straight wires are set parallel to each other at separation rand each carries a current in the same direction. The strength of the magnetic field at any point midway between the two wires is

Solution:

## $ {{B}_{1}}=frac{{{mu }_{0}}i}{2pi left( frac{r}{2} right)} $

$ {{B}_{2}}=frac{{{mu }_{0}}i}{2pi left( frac{r}{2} right)} $ So, $ {{B}_{net}}=0 $