An iron plate 10^(-5) m^(2) area, 4 xx 10^(-3) m thick has its opposite faces maintained at 373 K and 223 K respectively. How much heat flows through the plate per second ? Thermal conductivity of iron = 80 "Wm"^(-1) "K"^(-1).

An iron plate 10^(-5) m^(2) area, 4 xx 10^(-3) m thick has its opposit

1.	An iron plate 10^(-5) m^(2) area, 4 xx 10^(-3) m thick has its opposite faces maintained at 373 K and 223 K respectively. How much heat flows through the plate per second ? Thermal conductivity of iron = 80 "Wm"^(-1) "K"^(-1).
Answer» Solution :`Q= KA ( theta_1 - theta_2 ) t // x = 80 XX 10^(-5) xx 50 xx 1//4 xx 10^(-3) = 10J`