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Heat Transfer

Q1: For small temperature difference, the heat transfer rate as per Newton's law of cooling is proportional to (where, Δt = excess temperature)

A Δt

B Δt2

C Δt3

D Δt

ANS:A - Δt

For small temperature differences, according to Newton's law of cooling, the heat transfer rate is approximately proportional to the excess temperature (Δt). Therefore, the correct completion is: a) Δt



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