If h 1 = inner film co-efficient and / h 2 = outer film co-efficient, then the overall heat transfer co-efficient is Options: A . &nbspalways less than h1 B . &nbspalways between h1 and h2 C . &nbspalways higher than h2 D . &nbspdependent on metal resistance

If h

Question

If h₁ = inner film co-efficient and /h₂ = outer film co-efficient, then the overall heat transfer co-efficient is

Options:

A . always less than h1

B . always between h1 and h2

C . always higher than h2

D . dependent on metal resistance

Answer: Option A

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