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-   -   Thermal resistance (https://www.askmehelpdesk.com/showthread.php?t=404209)

  • Oct 9, 2009, 07:12 AM
    thunderboymmt
    Thermal resistance
    A metallic sphere having inner and outer radii a and b respectively has thermal conductivity
    k=ko/r^2 (a<= r <=b)

    The thermal resistance between inner and outer surface is-

    1) b-a / 4pie ko
    2)b^2-a^2 / 4pie ko ab
    3) 4pie ko / b-a
    4) None of these

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