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A resistance thermometer has resistance ...

A resistance thermometer has resistance 95.2 `Omega` at the ice point and 138.6 `Omega` at the steam point. What resistance would be obtained if the actual temperature is `27^@ C` ?

Text Solution

Verified by Experts

Here the thermometric property P is the resistance. Using Eq. (7.2), if R is the resistance at `27^@ C`, we have
` 27 = (100 (R-95.2))/((138.6-95.2)),`
`therefore R=(27 xx (138.66 -95.2))/(100)+ 95.2`
`=11.72 +95.2 =106.92 Omega `
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