The class is about Electricity and Magnetism. The website wants exactly the perfect answer and in the same metric system units that are stated on the calculators that are on the picture for the question, if not, it'll mark it wrong.

Set 15 Problem 5 Coaxial Cable with Nonum'form Current A coaxial cable consists of a solid inner conductor of radius R1 = 2.31 mm, surrounded by a coaxial cylindrical tube ofinner radius R2 = 4.2 mm and outer radius R; = 6.34 mm. The conductors carry equal and opposite currents 10 = 10.5 A. The currents are nor distributed uniformly, but instead the current density j varies linearly with the distance r from the center axis: 11 : clr for the inner conductor and b = c2r for the outer conductor. a Find the values ofthe constants c] and c2. 'The total current carried by the inner conductor is ID. The total current is also the integral of the current density clr over the cross-sectional area of the inner conductor. You can divide the area into thin rings of radius r and thickness dr, each having area 2.7:? dr. b. Find the magnitude IBI of the magnetic field at r = 1.0 mm, IBI = T abc sin(x) Ox10 Submit Reset Reset All .Use Ampere's Law. Draw a circular Amperian loop of radius 1.00 mm coaxial with the the center axis. What is the direction of the magnetic field at points on the loop? .To figure out how much current threads the loop, integrate the current density as you did in part a. at r = 3.0 mm, 4 IBI = T abc sin(> Ox10" Submit Reset Reset Allat r = 3.0 mm, IBI = T abc sin(x Ox10 Submit Reset Reset All and at r = 10.0 mm, "C IBI = T abc sIn(X Ox10 Submit Reset Reset All