A Certain Material Is in a Room at 25°C

question 16

Multiple Choice

A certain material is in a room at 25°C.If the absolute temperature (K) of the material is tripled,its resistance doubles.(Water freezes at 273 K. ) What is the value for α,the temperature coefficient of resistivity?

• A)0.020 (°C)−¹
• B)0.0034 (°C)−¹
• C)0.0017 (°C)−¹
• D)5.96 (°C)−¹

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