A square wire loop 12.0 cm on each side carries a clockwise current of 15.0 A
Find the magnitude of the magnetic field at its center due to the four 1.30 −mm wire segments at the midpoint of each side.
B = (μ0*I)/(4π)*(2a)/(x√(x^2+a^2))
The Attempt at a Solution
I used the above equation for magnetic field at the center of the square loop due to one wire and then multiplied it by 4 since the contribution due to each wire segment is the same by symmetry.
B = 4*(4π*10^-7*15)/(4π)*(2*0.06)/(0.06*√(0.06^2+0.06^2))
B = 1.41*10^-4 T
This answer is wrong and I don't know why