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The figure given below shows the variation of temperature across the thickness of materials with different thermal conductivities under steady states. Curve C will be applicable when thermal conductivity of the material______
  • a)
    Increases with increase in temperature
  • b)
    Decreases with increase in temperature
  • c)
    Is very large
  • d)
    Is constant at all temperatures
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The figure given below shows the variation of temperature across the t...
The variation in thermal conductivity of a material with temperature in the temperature range of interest is given by k(T) = k0 (1 + αT) where α is called the temperature coefficient of thermal conductivity.
Curve B represents that α is less than zero
Curve D represents that α is zero
Curve A represents that α is greater than zero
Curve C represents that α is very large so the value of thermal conductivity is also very large. Curve C represents that there is almost no loss in heat transfer across the thickness which clearly indicates very large value of thermal conductivity.
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Most Upvoted Answer
The figure given below shows the variation of temperature across the t...
The variation in thermal conductivity of a material with temperature in the temperature range of interest is given by k(T) = k0 (1 + αT) where α is called the temperature coefficient of thermal conductivity.
Curve B represents that α is less than zero
Curve D represents that α is zero
Curve A represents that α is greater than zero
Curve C represents that α is very large so the value of thermal conductivity is also very large. Curve C represents that there is almost no loss in heat transfer across the thickness which clearly indicates very large value of thermal conductivity.
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The figure given below shows the variation of temperature across the thickness of materials with different thermal conductivities under steady states. Curve C will be applicable when thermal conductivity of the material______a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Is very larged)Is constant at all temperaturesCorrect answer is option 'C'. Can you explain this answer?
Question Description
The figure given below shows the variation of temperature across the thickness of materials with different thermal conductivities under steady states. Curve C will be applicable when thermal conductivity of the material______a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Is very larged)Is constant at all temperaturesCorrect answer is option 'C'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about The figure given below shows the variation of temperature across the thickness of materials with different thermal conductivities under steady states. Curve C will be applicable when thermal conductivity of the material______a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Is very larged)Is constant at all temperaturesCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The figure given below shows the variation of temperature across the thickness of materials with different thermal conductivities under steady states. Curve C will be applicable when thermal conductivity of the material______a)Increases with increase in temperatureb)Decreases with increase in temperaturec)Is very larged)Is constant at all temperaturesCorrect answer is option 'C'. Can you explain this answer?.
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