Determine the magnetic field strength and direction at a point 'z' on the axis of the centre of a semi-circular current loop of radius R.
Biot Savart Formula
e being the unit vector from r to R
The Attempt at a Solution
A much simpler problem is a full current loop, because one component of the magnetic field cancels out. For this problem, you'd have to deal with the half-circle arc and the straight line base separately. I was also wondering whether its easier to calculate the z and x components of B separately as well... One component is straightforward enough... I just really don't understand where to start.