I am having trouble solving the question and don't know the steps or how to start. Can I get the answer in a written solution?

The volume current density in an infinitely long cylindrical conductor with radius a = 2.00 mm is given by ] = Hp? 33, where the conductor extends in the zdirection [that is, the zaxis is the conductosz axis of symmetry} and where B is a constant given by 2.00 x 105 Mm\". What is themagnetic eld inside and outside the conductor? Hint: Consider as an amperian loop T .m; 1% H \"(ll :j'clg