A wall has two layers A and B each made of different materials. the layer A is 10 cm thick and B is 20 cm thick. the thermal conductivity of A is thirce that of B. Under thermal equilibrium, temperature across the wall is 35 degree celcius. The difference of temperature across the layer A isa) 30 degree celcius.b) 14 degree celcius.c) 8.75 degree celcius.d) 5 degree celcius.

Arnab Mandal , 13 Years ago

Grade 11