The solution of the problem 2.45 кр 2 from the problem

Task 2.45
A current of 4 A flows along an annular conductor with a radius of 10 cm. In parallel with the plane of the annular conductor
At a distance of 2 cm above its center is an infinitely long rectilinear conductor,
Which flows current 2 A. Determine the induction and the strength of the magnetic field in the center of the ring.
Consider all possible cases.