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A wire has a resistance of 5.5 Ω at 19oC and 21.5 Ω at 200oC. Find the temperature coefficient of resistivity(α) of the material.

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A wire has a resistance of 5.5 Ω at 19<sup>o</sup>C and 21.5 Ω at 200<sup>o</sup>C. Find the temperature coefficient of resistivity(α) of the material.






 
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