Question: Resistance as a function of temperature difference for an unknown metal 5 5 Linear Fit for: Data Set | Resistance R = mx+b m (Slope):

Resistance as a function of temperature difference for an unknown metal 5 5 Linear Fit for: Data Set | Resistance R = mx+b m (Slope): 0.02295 +/- 0.00065 0/C b (Y-Intercept): 4.67762 +/- 0.01259 0 Correlation: 0.99720 RMSE: 0.03014 () Resistance (0) 1.5 N_ 20 Temperature difference ("C) Question 2 (1 point) Consider the graph above that shows a plot of the resistance as a function of the temperature difference (7 - 20 C) for an unknown metal. Using the linear regression parameters, calculate the temperature coefficient of resistivity (in .C-1) for this metal with an initial measurement of Ro = 4.69 02. Round your answer to 5 decimal places. Your Answer: Answer Question 3 (1 point) Consider the graph above that shows a plot of the resistance as a function of the temperature difference (7 - 20C) for an unknown metal. Using the linear regression parameters, calculate the uncertainty for the temperature coefficient of resistivity (in C-1) for this metal using the propagation of error method. You must consider the uncertainty on the slope as well as Ro. Round your answer to 5 decimal places. NB. The uncertainty of your measured value of Ro = 4.69 is & is 6% (ie. multiply 4.69 by 0.06 to find the uncertainty for Ro). Your Answer:

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