A fin has 5 mm diameter and 100 mm length. The thermal conductivity of fin material is 400 W/m.K. One end of the fin is maintained at 130 C and its remaining surface is exposed to ambient air at 30 C. if the convective heat transfer coefficient is 40 W/m^2.K, the heat loss (in W) from the fin is A. 0.08 B. 5.0 C. 7.0 D. 7.8
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Edited: Sep 12
Heat loss from fin and how to decide equations when fin type is not given - GATE ME '10
Heat loss from fin and how to decide equations when fin type is not given - GATE ME '10
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Correction:
Cases 1 and 3 are definitely not possible.