Question

Two bars of thermal conductivities 2Wm-'k- and 3Wm-'k 'and lengths 2cm and lem
respectively have equal cross - sectional area, they are joined length wise. If the temperature
at the ends of this composite bar is 10°C and 90°C respectively, then the temperature 8 of the
interface is​

Answer 1

Answer:

as they both are in series combination rate of flow will be same...... so by solving we will get it as 78c