A 0.5-ampere current is flowing through a long electrically conducting cylindrical rod.The diameter of the rod is 6 mm, the electrical resistance of the rod is R= 2000 O/m,and k=0.9

W/m K for the rod. The rod is encased in a 2-mm thick Pyrex tube and a 20°C liquid is flowing over the outer surface of the Pyrex tube. The convection heat transfer coefficient for the liquid h =800 W/n K. The interfacial conductance (contact resistance) at the interface between the rod and the Pyrex tube is A-1200 W/m K. a) Compute the rate of heat generation in the rod and use it compute the volumetric rate of heat generation (answers: Q' = b00 W/m and =1.7684x10 Wm). b) Find the temperature drop across the interface between the outer surface of the rod and the inner surface of the Pyrex tube (answer. 22.1 C).W C Find the temperature at the center of the rod (answer 1375 C).