Acoaxial cable consists of two very long coaxial cylindrical tubes, separated by linear insulating material with magnetic susceptibility xm- a current i flows down the inner conducting tube and returns over the internal surface in each case along the outer one, with the current distributed uniformly (a) find h and then b in the region between the two tubes as functions of i, xm and the distance from the central axis of the coaxial cable [6 marks (b) show that the magnetization in the region between the two tubes is m = (xmi/2ts) show explicitly that the bound volume current density in this region is zero. [4 marks [6 marks (c) find the bound surface current density on the surfaces of the two tubes. (d) find the total current on the inner tube, and use this with ampère's law to directly [6 marks calculate b in the region between the two tubes. (e) find the total magnetic flux passing through tube, radially outward to the outer tube, along the outer tube and radially inward to close the loop. find the self-inductance per unit length of the solenoid loop whose sides go along the