A steel bar 10.0 cm long is welded end to end to a copper bae 20.0 cm long. Both bars are insulated
Channel: Doubtnut
Date: 2020-08-30

A steel bar 10.0 cm long is welded end to end to a copper bae 20.0 cm long. Both bars are insulated perfectly on their sides . Each bar has a separate cross-section, 2.00 cm on a side . The free end of the steel bar is maintained at `100^(@)C` by placing it in contact with ice . find the temperature at the junction of the two bars and the total rate of heat flow . thermal conductivity of steel `= 50.2 Wm^(-1)K^(-1)`.thermal conductivity of copper `=385 Wm^(-1)K^(-1)`.