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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Definitions:

Standard Deviation

A measure of the dispersion or variability in a dataset, indicating how much the individual data points differ from the mean.

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Poisson Approximation

A statistical approximation method that applies the Poisson distribution to model the number of events in fixed intervals of time or space under certain conditions.

Probability

The statistical likelihood that a specific event will take place, calculated as a fraction or a percentage between 0% (never happening) and 100% (always happening).