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Explain thermal conductivity and coeffic...

Explain thermal conductivity and coefficient of thermal conductivity. A copper bar of thermal conductivity 401 W (mK) has one end at `104^(@)C` and the other end at `24^(@)C`. The length of the bar is 0.10 m and the cross- sectional area is 1.0 x `10^(-6)m^(-2)` What is the rate of heat conduction , along the bar ?

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