Physics - Heat & Thermo Question with Solution | TestHub

A copper rod and a steel rod of equal cross-sections and lengths ($L$) are joined side by side and connected between two heat baths as shown in the figure. If heat flows through them from $x=0$ to $x=2L$ at a steady rate and conductivities of the metals are $K_{cu}$ & $K_{steel}$ ($K_{cu}>K_{steel}$), then the heat current ($i$) and temperature ($T$) varies with $x$ as: (convection and radiation heat loss are negligible).