A platinum resistance thermometer has a ...

A platinum resistance thermometer has a resistance of `50 Omega` at `20^(@)C` . When dipped in a liquid the resistance becomes `76.8 Omega` . The temperature coefficient of resistance for platinum is `alpha = 3.92 xx 10^(-3)//""^(@)C`. The temperature of the liquid is

A

`100^(@)C`

B

`137^(@)C`

C

`167^(@)C`

D

`200^(@)C`

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The correct Answer is:

C

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ERRORLESS -CURRENT ELECTRICITY-Self Evaluation Test -19

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