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tentiometer consisting of a wire of length = 10 cm has a source of emf, & = 15V connected across it. When a standard cell with emf V = 6V, in series a voltmeter, is connected at one end of the wire and at a distance L along the wire the voltmeter circuit is in balance and the voltmeter reads

tentiometer consisting of a wire of length = 10 cm has a source of emf, & = 15V connected across it. When a standard cell with emf V = 6V, in series a voltmeter, is connected at one end of the wire and at a distance L along the wire the voltmeter circuit is in balance and the voltmeter reads

College Physics
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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A potentiometer consisting of a wire of length = 10 cm has a source of emf, ε = 15V connected across it. When a standard cell with emf V = 6V, in series with a voltmeter, is connected at one end of the wire and at a distance L along the wire the voltmeter circuit is in balance and the voltmeter reads zero. What is the value of the balance length L?
Transcribed Image Text:A potentiometer consisting of a wire of length = 10 cm has a source of emf, ε = 15V connected across it. When a standard cell with emf V = 6V, in series with a voltmeter, is connected at one end of the wire and at a distance L along the wire the voltmeter circuit is in balance and the voltmeter reads zero. What is the value of the balance length L?
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