A flat annular metal ring undergoes a steady-state thermal diffusion process defined in the domain 1 < < 10, < < , and subject to the following conditions: (1, ) = 0 (10, ) = 100 Solve for the temperature distributions (, ) on the ring, and then describe in your own words the isotherms that represent this thermal field. Does your solution depend on whether the ring is made of copper or aluminum? Explain, using an appropriate equation