A. A. Wheatstone Bridge such as in Fig. 1 has a Vo=10. with R = 5.002 and the unknown resistor Rx at room temperature, the bridge is balanced with R1 = 3.00 and R2=7.00 cm. What is the value of R? While still attached to the bridge, the unknown Rx is placed in an oven, which raises its temperature by 33.0° C. The value of VAB is then found to be 0.127V. What is the resistance change of the unknown, AR:? What is the % change per degree of the resistivity of this sample?

A. A. Wheatstone Bridge such as in Fig. 1 has a Vo=10. with R = 5.002 and the unknown resistor Rx at room temperature, the bridge is balanced with R1 = 3.00 and R2=7.00 cm. What is the value of R? While still attached to the bridge, the unknown Rx is placed in an oven, which raises its temperature by 33.0° C. The value of VAB is then found to be 0.127V. What is the resistance change of the unknown, AR:? What is the % change per degree of the resistivity of this sample?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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