1. A d'Arsonval ammeter circuit is shown in Figurel When the full scale current through the meter is 3 mA, the corresponding voltage across the meter coil is 150 mV. Answer the following questions: (a) Calculate the value of the shunt resistors RA that allows to measure a full-scale current reading of 5 A and 100 mA respectively (b) How much resistance is added to a circuit when the 5 A ammeter in partla is inserted to measure current? (c) Explain a technique to use the same meter as a voltmeter to measure full-scale voltage of 100 V 150 mV 3 mA RA Ammeter Figure 1: d'Arsonval galvanometer

1. A d'Arsonval ammeter circuit is shown in Figurel When the full scale current through the meter is 3 mA, the corresponding voltage across the meter coil is 150 mV. Answer the following questions: (a) Calculate the value of the shunt resistors RA that allows to measure a full-scale current reading of 5 A and 100 mA respectively (b) How much resistance is added to a circuit when the 5 A ammeter in partla is inserted to measure current? (c) Explain a technique to use the same meter as a voltmeter to measure full-scale voltage of 100 V 150 mV 3 mA RA Ammeter Figure 1: d'Arsonval galvanometer

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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