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The resistance of the platinum wire of a...

The resistance of the platinum wire of a platinum resistance thermometer at the ice point is `5 Omega` and at steam point ins `5.23 Omega` When the thermomenter is inserted in a hot bath, the resistance of the platinum wire is `5.795Omega.` Calculate the temperature of the bath.

Text Solution

Verified by Experts

`R_(0) = 5 Omega , R_(100) = 5. 23 Omega and R_(t) = 5.795Omega`
Now, `t = ( R _(t) - R _(0))/( R _(100) - R _(0)) xx 100`
`= ( 5. 795 -5)/(5.23 -5) xx 10 0`
` = ( 0.795)/( 0.23) xx 10 0= 345.65^(@)C`
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