FIGURE 6 shows a simple potentiometer. Wire PQ has length 100 cm and resistance 2.4 N. The galvanometer G shows no deflection when the jockey is at X, a distance 60 cm from P. (i) By neglecting the internal resistance of the 2.0 V battery, calculate the emf Eg of battery B. [Ans: ɛg = 0.74 V] The galvanometer and battery B are replaced by a voltmeter of internal resistance 20 N. Calculate the reading of the voltmeter if the jockey is maintained at its position, X. JAns: V px = 0.71 V] (ii) %3D

FIGURE 6 shows a simple potentiometer. Wire PQ has length 100 cm and resistance 2.4 N. The galvanometer G shows no deflection when the jockey is at X, a distance 60 cm from P. (i) By neglecting the internal resistance of the 2.0 V battery, calculate the emf Eg of battery B. [Ans: ɛg = 0.74 V] The galvanometer and battery B are replaced by a voltmeter of internal resistance 20 N. Calculate the reading of the voltmeter if the jockey is maintained at its position, X. JAns: V px = 0.71 V] (ii) %3D

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 19P

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