The thermal conductivity of a rod is 2. What is its thermal-resistivity ?
The thermal conductivity of a rod is 2. What is its thermal-resistivity ?
A. 0.5
B. 1
C. 0.25
D. 2
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Correct Answer - A
Key Idea Thermal resistivity is reciprocal of thermal conductivity.
`"Thermal resistivity"=(1)/("Thermal conductivity")`
`=(1)/(2)`
0.5
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