Answer:
[tex]B_{net} = 8.67 \times 10^{-6} T[/tex]
Explanation:
As we know that the magnetic field is given as
[tex]B = \frac{\mu_0 i}{2\pi r}[/tex]
so here we know that
[tex]i = 5.2 A[/tex]
[tex]r = d = 12 cm[/tex]
now we have magnetic field given as
[tex]B = \frac{(2 \times 10^{-7})(5.2)}{0.12}[/tex]
[tex]B = 8.67 \times 10^{-6} T[/tex]
now net magnetic field at Point P is given as
[tex]B_{net} = 2Bcos60[/tex]
so we have
[tex]B_{net} = 2(8.67 \times 10^{-6})cos60[/tex]
[tex]B_{net} = 8.67 \times 10^{-6} T[/tex]