Film coefficient is defined as Inside diameter of tube

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RRB Paper · Accepted Answer

Film coefficient or heat transfer coefficient (h) is defined as the ratio of the thermal conductivity of the material to the equivalent thickness of the film.

h = (Thermal conductivity)/(Equivalent thickness of Film)

Film coefficient is defined as Inside diameter of tube

Equivalent thickness of film

Thermal conductivity Equivalent thickness of film Specific heat

Thermal conductivity Molecular diffusivity of momentum Thermal diffusivity

Film coefficient × Inside diameter Thermal conductivity

The correct answer is `No. 2: Thermal conductivity Equivalent thickness of film Specific heat`

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Film coefficient is defined as Inside diameter of tube

Equivalent thickness of film

Thermal conductivity Equivalent thickness of film Specific heat

Thermal conductivity Molecular diffusivity of momentum Thermal diffusivity

Film coefficient × Inside diameter Thermal conductivity

The correct answer is No. 2: Thermal conductivity Equivalent thickness of film Specific heat

The correct answer is `No. 2: Thermal conductivity Equivalent thickness of film Specific heat`