Magnetic field of a current loop

[MahalMuh]

Homework Statement

Circular current loop with radius of R = 0.3 cm and current I = 1.4 A

Calculate the magnetic field B within the distances of a) x1 = 0.17 cm and b) x2 = 2.3 cm from the axis.

Relevant Equations

B = (u0/2) * (IR^2) / (x^2 + R^2)^(3/2)

This should be pretty straightforward and my take gives B = 0.000193*T for a) and B = 0.00000063 T for b).

Or have I misunderstood something?

 

[MahalMuh]

I’m not passing the grader with the above answer.

 

[MahalMuh]

It seems the B equation is for its x-directed component. To derive B just need the angle. Solved.

 

[rude man]

[Calculate the magnetic field B within the distances of a) x1 = 0.17 cm and b) x2 = 2.3 cm from the axis.

"From the axis"? Should be "from the coil plane"? Or a diametric axis?
"The axis" is usually understood to be the coil's major axis.