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A copper wire of diameter D = 200 um and a total length 2L = 200 mm is stretched between two large substrates, each of which is at temperature Tb = 100 C. Air at temperature T = 20C is in cross flow over the wire, providing a convection heat transfer coefficient of h = 500 W/m^2. K
a) At what x location does the minimum wire temperature exist? What is the value of the temperature gradient dT/dx, at this location?
b) What is the convective heat loss from the wire?
c) What is the value of the minimum wire temperature?
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