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Suppose you want to measure resistances in the range from 10.0$\Omega$ to 10.0 $\mathrm{k} \Omega$ using a Wheatstone bridge that has $\frac{R_{2}}{R_{1}}=2.000 .$ Over what range should $R_{3}$ be adjustable?
20 $\mathrm{k} \Omega$
Physics 102 Electricity and Magnetism
Chapter 21
Circuits, Bioelectricity, and DC Instruments
Direct-Current Circuits
University of Washington
Simon Fraser University
University of Winnipeg
McMaster University
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So in this ah wisdom bridge problem, we know that the range of the Rx ah is ah from 10 homes too. 10 key domes. Okay. And we also know that aren't too over. Our one is two. So? So for the for the resulting the Western Bridge we have our x r one equal aren't too are three So we're gonna figure out the range of the are free. So are three equal rx are one over r two, So just utilize the result from the problem. So this equal rx over too, right? So we can see the range of our three is from five homes to five key domes, okay?
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