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2.1 Explain why the adjusted value of  R2 is equal to the internal resistance of the basic meter in Fig. 4.   2.2 Assume that we are given a basic meter having an internal resistance of 50ohm and a full-scale deflection of 1 mA. a) Design an ammeter having a full-scale deflection of 10mA. b) Design a voltmeter to measure a full-scale voltage of 30V.        2.3 Consider the circuit diagram in Fig. 3 and  V(dc)=3V. a) When a-b are short-circuited, determine the value of Rv for full-scale deflection. b) Find the value of the unknown resistor Rx, if the meter current is 0.33mA.

2.1 Explain why the adjusted value of  R2 is equal to the internal resistance of the basic meter in Fig. 4.   2.2 Assume that we are given a basic meter having an internal resistance of 50ohm and a full-scale deflection of 1 mA. a) Design an ammeter having a full-scale deflection of 10mA. b) Design a voltmeter to measure a full-scale voltage of 30V.        2.3 Consider the circuit diagram in Fig. 3 and  V(dc)=3V. a) When a-b are short-circuited, determine the value of Rv for full-scale deflection. b) Find the value of the unknown resistor Rx, if the meter current is 0.33mA.

Introductory Circuit Analysis (13th Edition)
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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2.1 Explain why the adjusted value of  R2 is equal to the internal resistance of the basic meter in Fig. 4.

 

2.2 Assume that we are given a basic meter having an internal resistance of 50ohm and a full-scale deflection of 1 mA.

  1. a) Design an ammeter having a full-scale deflection of 10mA.
  2. b) Design a voltmeter to measure a full-scale voltage of 30V.

      

2.3 Consider the circuit diagram in Fig. 3 and  V(dc)=3V.

  1. a) When a-b are short-circuited, determine the value of Rv for full-scale deflection.
  2. b) Find the value of the unknown resistor Rx, if the meter current is 0.33mA.
R DC Power R. R2 Supply Figure 4.
Transcribed Image Text:R DC Power R. R2 Supply Figure 4.
R V 0-1mA R =1002 V dc b, R Figure 3.
Transcribed Image Text:R V 0-1mA R =1002 V dc b, R Figure 3.
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