A closed cubical box is made of perfectly insulating

Last updated: 6/13/2023

A closed cubical box is made of perfectly insulating material The only way for the heat to enter or leave is through two solid cylindrical plugs each of cross sectional area 12cm and length 8 cm The 100 C material of the plugs has K 2 Wm K A source S of energy generating 13 W is kept inside the box The outside temperatures on the two plugs are maintained at 100 C and 40 C respectively Find the equilibrium temperature in C of the inner surface assuming it to be same for all points on the inner surface S 40 C