Refer to Problem 8.5. If the voltage and current (in amps) for three pairs of measurements are (V.) = (-5.2.-0.50). (0.3,0.00), and (5.5.0.50), what is the resistance (in ohms) inferred from Ohm's law fo these three measurements? What is the uncertainty in the resistance? 8.5. ** Line Through the Origin. Suppose two variables x and y are known to satisfy a relation y = Bx. That is, y x x, and a graph of y vs x is a line through the origin. (For example, Ohm's law, V= RI, tells us that a graph of voltage V vs current I should be a straight line through the origin.) Suppose further that you have N measurements (r, v.) and that the uncertainties in r are negligible and those in v

Refer to Problem 8.5. If the voltage and current (in amps) for three pairs of measurements are (V.) = (-5.2.-0.50). (0.3,0.00), and (5.5.0.50), what is the resistance (in ohms) inferred from Ohm's law fo these three measurements? What is the uncertainty in the resistance? 8.5. ** Line Through the Origin. Suppose two variables x and y are known to satisfy a relation y = Bx. That is, y x x, and a graph of y vs x is a line through the origin. (For example, Ohm's law, V= RI, tells us that a graph of voltage V vs current I should be a straight line through the origin.) Suppose further that you have N measurements (r, v.) and that the uncertainties in r are negligible and those in v

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter1: Units And Measurement

Section: Chapter Questions

Problem 15P: Use the orders of magnitude you found in the previous problem to answer the following questions to...

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Calculate the voltages and currents for Figure 1.6. according to the given conditions in a,b, and c.
Refer to Problem 8.5. If the voltage and current (in amps) for three pairs measurements are (V.I) = (-5.2,-0.50), (0.3,0.00), and (5.5,0.50), what is the resistance (in ohms) inferred from Ohm's law for these three measurements? What is the uncertainty in the resistance? 8.5. ** Line Through the Origin. Suppose two variables x and y are known to satisfy a relation y = Bx. That is, y x x, and a graph of y vs x is a line through the origin. (For example, Ohm's law, V = RI, tells us that a graph of voltage V vs current I should be a straight line through the origin.) Suppose further that you have N measurements (X;, Y;) and that the uncertainties in x are negligible and those in y are all equal. Using arguments similar to those of Section 8.2, prove that the best %3D cstimate for B is
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