The Resistance of a Platinum Wire Is to Be Calibrated $\Omega$

question 82

Multiple Choice

The resistance of a platinum wire is to be calibrated for low-temperature work. A platinum wire with resistance 2.000 $\Omega$ at 20°C is immersed in liquid nitrogen at 77 K (-196°C) . If the temperature response of the platinum wire is linear, what is the expected resistance of the platinum wire at -0196°C? [ $\alpha$ _platinum = 3.92 *10^-3 (°C) ^-1].

• A) 0.153 \(\Omega\)
• B) 1.768 \(\Omega\)
• C) 3.69 \(\Omega\)
• D) 0.307 \(\Omega\)

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Definitions:

Binomial Experiment

An experiment that follows the binomial distribution, characterized by having fixed trials, two possible outcomes, independence, and a constant probability of success.

Expected Cell Frequencies

In the context of a contingency table, these are the theoretical frequencies of observations that would occur given the null hypothesis is true.

Test Statistic

A numerical value used in statistical testing to determine whether to reject the null hypothesis, calculated from sample data.

Degrees of Freedom

The number of independent pieces of information used to estimate a parameter or statistic in a dataset.