Write down the differential equation for steady two dimensional heat conduction and indicate the method of solving the same

Write down the differential equation for steady two dimensional heat conduction and indicate the method of solving the same

Write down the differential equation for steady two dimensional heat conduction and indicate the method of solving the same. 38. A thin square slab conducting heat along two dimensions has three of its faces at say 400°C and the fourth side at 800°C. Sketch a few equal temperature lines. Explain your answer in detail.