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Thermal conductivity of a thin film

  1. Jan 8, 2017 #1
    1. The problem statement, all variables and given/known data
    The problem is given.

    2. Relevant equations


    3. The attempt at a solution
    I tried to solve the question as if there is a nanowire between two reservoirs and got an answer. But I don't know what should I do to measure thermal conductivity in a thin film.

    My formula for k in a nanowire was independent from geometry and material, just dependent to temperature. So if I say, the thin film and nanowire conductivities are the same, would this reasoning be valid?
     

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