Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Chapter 7, Problem 41P
Using a 1 mA, 1000
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0.2
A moving coil instrument gives a half scale deflection for a current of 20 mA with a potential
difference of 300 mV across it. Using direct method, calculate and design:
i) Shunt resistors are required to use it as an ammeter to get ranges 0 – 50 A and 0- 100 A.
ii) Multiplier resistors are required to use it as a voltmeter of ranges 0 – 150 V and 0– 300 v.
1. A voltmeter with resistance 'Ry' is connected
in parallel with resistance R=150 ohms.
The applied voltage V= 175V. Determine the
error (E) & percentage error (%E) in the
measurement of voltage (V) due to loading
effect of voltmeter when-(i) Ry =2.75M 2
V
1. A PMMC instrument has internal resistance of 1.7kΩ andgives full scale deflection for 50μA. Calculate the required resistance value of multiplier resistors for employing the meter as a multi range voltmeter for voltage ranges of 10V, 50V and 100V.
Chapter 7 Solutions
Introductory Circuit Analysis (13th Edition)
Ch. 7 - Which elements (individual elements, not...Ch. 7 - Repeat Problem 1 for the networks of Fig. 7.65....Ch. 7 - Determine RT for the networks in Fig. 7.66. Fig....Ch. 7 - Determine RT for the networks in Fig. 7.67. Fig....Ch. 7 - Find the total resistance for the configuration of...Ch. 7 - The total resistance RT for the network of Fig....Ch. 7 - For the network in Fig. 7.70. a. Does...Ch. 7 - For the network in Fig. 7.71: a. Determine RT. b....Ch. 7 - For the network of Fig. 7.72: a. find the currents...Ch. 7 - For the network of Fig. 7.73: Find the voltages V3...
Ch. 7 - For the network of Fig. 7.74 a. Find the voltages...Ch. 7 - For the circuit board in Fig. 7.75: Find the total...Ch. 7 - Find the value of each resistor for the network of...Ch. 7 - Find the resistance RT for the network of Fig....Ch. 7 - For the network in Fig. 7.78: a. Find currents...Ch. 7 - a. Find the magnitude and direction of the...Ch. 7 - Determine the currents I1andI2 for the network in...Ch. 7 - For the network in Fig. 7.81: a. Determine the...Ch. 7 - For the network in Fig. 7.82: a. Determine the...Ch. 7 - Determine the dc levels for the transistor network...Ch. 7 - For the network in Fig. 7.84: Determine the...Ch. 7 - For the network in Fig. 7.852 Determine RT by...Ch. 7 - For the network of Fig. 7.86: a. Find the voltages...Ch. 7 - For the network in Fig. 7.87: a. Determine the...Ch. 7 - For the network in Fig. 7.88 find the resistance...Ch. 7 - If all the resistors of the cube in Fig. 7.89 are...Ch. 7 - For the ladder network in Fig. 7.90: a. Find the...Ch. 7 - For the ladder network in Fig. 7.91: a. Determine...Ch. 7 - Given the voltage divider supply in Fig. 7.92: a....Ch. 7 - Determine the voltage divider supply resistors for...Ch. 7 - A studio lamp requires 40 V at 50 mA to burn...Ch. 7 - For the system in Fig. 7.94 a. At first exposure,...Ch. 7 - For the potentiometer in Fig. 7.95: a. What are...Ch. 7 - Prob. 34PCh. 7 - Given the voltmeter reading V = 27 V in Fig. 7.97...Ch. 7 - Determine the power delivered to the 6 load in...Ch. 7 - For the multiple ladder configuration in Fig....Ch. 7 - An iron-vane movement is rated 1 mA, 100 . a. What...Ch. 7 - Using a 50 A, 1000 movement, design a multirange...Ch. 7 - An iron-vane movement is rated 50 A , 1000 a....Ch. 7 - Using a 1 mA, 1000 movement, design a multirange...Ch. 7 - A digital meter has an internal resistance of 10 M...Ch. 7 - a. Design a series ohmmeter using a 100 A, 1000...Ch. 7 - Prob. 44PCh. 7 - Determine the reading of the ohmmeter for each...Ch. 7 - Using PSpice or Multisim, verify the result of...Ch. 7 - Using PSpice or Multisim, Confirm the solutions of...Ch. 7 - Using PSpice or Multisim, verify the result of...Ch. 7 - Using PSpice or Multisim, find voltage V6 of Fig....Ch. 7 - Using PSpice or Multisim, find voltages Vb and Vc...
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- A voltmeter with a range of 0 to 100 V reads 2 V when the leads are shorted together. The manufacturer claims an accuracy of ±4 % of full scale. Estimate the maximum error when reading a voltage of 80 V in both volts and as a percentage of reading. If the voltmeter is adjusted so that the reading when the leads are shorted together is 0 V, estimate the maximum percent error when reading 80 Varrow_forward1. Determine the value of the multiplier resistance needed to measure a voltage range of 0-10V of a basic D' Arsonval movement with a full-scale deflection of 250 µA and internal resistance of 2502 is used as a DC voltmeter. 2. Calculate the value of shunt resistance required in a 10mA meter movement with an internal resistance of 10002 is to be converted into a 0-1000 mA. 3. Find the value of Rx given PMMC with resistance 1002 was using in series ohmmeter. R1 = 5002, R2 = 4002 and supply voltage = 10v. When connected with Rx, the reading shows 0.5mA.arrow_forward2. A voltage dividing potentiometer is used to measure an angular displacement. The angle of displacement is 60° and total angle of travel of potentiometer is 355°. Calculate the voltage output on open circuit if the potentiometer is excited by a 60 V source. Calculate the actual value of the output voltage at this setting if a voltmeter of 1 Mega ohm resistance is connected across the output. The resistance of the potentiometer is 1 kilo ohms. The turns are uniformly distributed. Calculate the percentage of error.arrow_forward
- You are given a galvanometer with a resistance of 16.3 2 and a full scale deflection current of 8.22 mA. You use a 22.7-mN shunt resistor to convert this galvanometer into an ammeter. (a) How should you connect the shunt resistor and galvanometer resistance? series parallel (b) Find the maximum current the ammeter is capable of reading. Aarrow_forward2. A voltage dividing potentiometer is used to measure an angular displacement. The angle of displacement is 60° and total angle of travel of potentiometer is 355°. Calculate the voltage output on open circuit if the potentiometer is excited by a 60 V source. Calculate the actual value of the output voltage at this setting if a voltmeter of 1 Mega ohm resistance is connected across the output. The resistance of the potentiometer is 1 kilo ohms. The turns are uniformly distributed. Caleulate the percentage of error. IIarrow_forward0.2 A moving coil instrument gives a half scale deflection for a current of 20 mA with a potentiar difference of 300 mV across it. Using direct method, calculate and design: i) Shunt resistors are required to use it as an ammeter to get ranges 0-50 A and 0- 100 A. ii) Multiplier resistors are required to use it as a voltmeter of ranges 0- 150 V and 0- 300 V.arrow_forward
- Two voltmeter of (0-300 V) range are connected in parallel to a A.C. circuit. One voltmeter is moving iron type reads 200 V. If the other is PMMC instrument, its reading will be a)200 V b) slightly less than 200 V c) 0 Varrow_forwardA 75-V DC voltage source is coupled to a 25 kOhm load resistor through a 35 kOhm source resistance. A Voltmeter-A has a sensitivity 8 kOhm/V with a measuring range of 0-35V. Calculate error in the voltmeter reading expressed in a percentage of the true value.arrow_forwardThe ammeter-voltmeter method is used to measure an unknown resistance R. An ammeter (A) connected in series with the resistance reads 0.3 R. A voltmeter (V) placed across the ends of the resistance reads 1.5V. compute the value of the resistance R.arrow_forward
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