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The resistance of a platinum resistance ...

The resistance of a platinum resistance thermometer is `3.14 Omega` at `40^(@)C` and `3.76 Omega` at `100^(@)C`. Calculate the temperature coefficient of resistance of platinum. What will be its resistance when the thermometer is immersed in melting ice ?

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The correct Answer is:
`0.00379^(@)C^(-1),2.73Omega`
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