4. Determine the temperature distribution (nodal temperatures) of the bar shown in the figu using two equal-length finite elements with cross-sectional area of 1 m2. The thermal condu tivity is 10 W/m°C, The left side is maintained at 300oC. The right side is subjected to heat k by convection with h = 1 W/m C and Tf = 30oC. All other sides are insulated.

Insulated Lj«J 7= 300oC I ] 7>=30oC H

20 m t[ t2 ts