A Certain Material Is in a Room at 27°C

question 49

Multiple Choice

A certain material is in a room at 27°C.If the absolute temperature (K) of the material is tripled,its resistance quadruples.(Water freezes at 273 K. ) What is the value for α,the temperature coefficient of resistivity?

• A) 0.0050 (°C)−¹
• B) 0.0025 (°C)−¹
• C) 1 (°C)−¹
• D) 3 (°C)−¹

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