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

If h₁ = inner film co-efficient and /h₂ = outer film co-efficient,

1.	If h₁ = inner film co-efficient and /h₂ = outer film co-efficient, then the overall heat transfer co-efficient is
A.	lways less than h₁
B.	lways between h₁ and h₂
C.	lways higher than h₂
D.	ependent on metal resistance
Answer» C. lways higher than h₂

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

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