A long bar of rectangular cross section of 0.12m X 0.15 m, and having a thermal conductivity of 1.5 W/m K, is subjected to the boundary conditions shown. Using an appropriate numerical technique with a grid of Ax = Ay = 0.03 m, determine the Finite-Different Equation of each nodes. To=150c, h= 100 W/mk Uniform temperature, T = 60 c 15 10 11 12 -Uniform temperature 8 19 Ts2 -50C 4 5 b 2 3 -Uniform temperature TS3 - 50C