The average heat transfer co-efficient over the entire length of the...

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The average heat transfer co-efficient over the entire length of the plate (h_a) and the local heat transfer co-efficient (h_L), in case of heat transfer over a flat plate in lminar zone is related as

A. H_a = 0.8h_L

B. H_a = 2h_L

C. H_a = h_L

D. H_a= 5h_L

Answer: Option B

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