Consider two two long, straight, parallel, current$-$carrying wires, separated by a distance $d=6.$Icm, as shown in the figure. The left wire is directed out of the page with current $I_1,$ and the right wire is directed into the page with current $I_2.$ The point $P$ is a distance $d$ from both wires, so the wires and the point form an equilateral triangle.

Part $($a$)$

If both wires are carrying a current of $8\mathrm{.}5$ A $,$ what is the magnitude of the magnetic field, in teslas, at point P $?$

$B=2\mathrm{.}787**{10}^{-5}$

$B=2\mathrm{.}787{10}^{-5}$

$$ Correct!

Part $($b$)$

If the current from the left wire is $8\mathrm{.}5$ A and the current from the right is $12$ A $,$ what is the magnitude of the magnetic field, in teslas, at point P $?$

I ONLY NEED PART B please