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solniwko [45]
4 years ago
8

Insulating materials are rated by their _____. specific heat heat index r-value temperature resistance

Physics
2 answers:
jeka57 [31]4 years ago
4 0

Answer: Option (c) is the correct answer.

Explanation:

The difference in temperature when per unit of heat flux is required by one unit of heat flux between a barrier of warmer and colder surface present in steady state condition is known as R-value.

Mathematically,       R-value = \frac{\text{Temperature difference}\times \text{Area}\times \text{Time}}{Heat loss}

Thermal resistance of insulating products or materials can be known with the help of R-value. As more is the r-value of a substance more will be its insulating power.

Therefore, we can conclude that insulating materials are rated by their r-value.

Leokris [45]4 years ago
3 0
That would be the R-value
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..... .. . . .. . . . . .. .

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