Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
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Chapter 2, Problem 24P
The adjustable contact of a linear potentlometer is set at the
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When you connect a voltmeter to read a dc voltage
a. polarity is not important
b. connect the voltmeter in series with the circuit
c. connect the voltmeter across the component
d. connect the common meter lead to the most positive point in the circuit
59. A DC voltmeter has a sensitivity of 1000 2/voll
When it measures half full scale in 100 V range,
the current through the voltmeter will be?
(a) 1 mA
(c) 0.5 mA
(b) 50 mA
(d) 100 mA
A 0 – 150 voltmeter has a resistance of 2000-ohms per volt. It is desired to change this voltmeter to a 0 – 600 volt instrument by the edition of an external multiplier. What is the resistance, in ohms, of this external multiplier?
Chapter 2 Solutions
Electronics Fundamentals: Circuits, Devices & Applications
Ch. 2 - The number of neutrons in the nucleus is the...Ch. 2 - The unit of charge is the ampere.Ch. 2 - Energy in a battery is stored in the form of...Ch. 2 - Prob. 4TFQCh. 2 - In a five-band precision resistor, the fourth band...Ch. 2 - A rheostat performs the same function as a...Ch. 2 - A strain gauge changes resistance in response to...Ch. 2 - Prob. 8TFQCh. 2 - Prob. 9TFQCh. 2 - The three basic measurements that can be done by a...
Ch. 2 - A neutral atom with an atomic number of three has...Ch. 2 - Electron orbits are called shells nuclei waves...Ch. 2 - Materials in which current cannot be established...Ch. 2 - When placed close together, a positively charged...Ch. 2 - The charge on a single electron is 6.2510-18C...Ch. 2 - Prob. 6STCh. 2 - Prob. 7STCh. 2 - Prob. 8STCh. 2 - Prob. 9STCh. 2 - Prob. 10STCh. 2 - Prob. 11STCh. 2 - There is no current in a circuit when a series...Ch. 2 - Prob. 13STCh. 2 - Potentiometers and rheostats are types of voltage...Ch. 2 - The current in a given circuit is not to exceed 22...Ch. 2 - How many coulombs of charge do 501031 electrons...Ch. 2 - How many electrons does it take to make 80C of...Ch. 2 - What is the charge in coulombs of the nucleus of a...Ch. 2 - What is the charge in coulombs of the nucleus of a...Ch. 2 - Detemine the voltage in each of the following...Ch. 2 - Five hundred joules of energy are used to move 100...Ch. 2 - What is the voltage of a battery that uses 800 J...Ch. 2 - How much energy does a 12 V battery in your car...Ch. 2 - Assume that a solar battery charger delivers 2.5 J...Ch. 2 - If the solar cell in Problem 9 has moved the...Ch. 2 - Determine the current in each of the following...Ch. 2 - Six-tenths coulomb passes a point in 3 s. What is...Ch. 2 - How long does it take 10 C to flow past a point if...Ch. 2 - How many coulombs pass a point in 0.1 s when the...Ch. 2 - Figure 2-61(a) shows color-coded resistors....Ch. 2 - 16. Find the minimum and the maximum resistance...Ch. 2 - If you need a 270 resistor with 5% tolerance. what...Ch. 2 - Determine the resistance value and tolerance for...Ch. 2 - Determine the resitance and tolerance of each of...Ch. 2 - Determine the color bands for each of the...Ch. 2 - Determine the resistance and tolerance of each of...Ch. 2 - Determine the color bands for each of the...Ch. 2 - Determine the resistance values represented by the...Ch. 2 - The adjustable contact of a linear potentlometer...Ch. 2 - Trace the current path in the lamp circuit of...Ch. 2 - With the switch in either position, redraw the...Ch. 2 - Show the placement of an ammeter and a voltmeter...Ch. 2 - Show how you would measure the resistance of R2 in...Ch. 2 - In Figure 2-64 what does each voltmeter indicate...Ch. 2 - In Figure 2-64, show how to connect an ammeter to...Ch. 2 - What is the voltage reading of the meter in Figure...Ch. 2 - How much resistance is the meter in Figure 2-66...Ch. 2 - Determine the resistance indicated by each of the...Ch. 2 - A multimeter has the following ranges:...Ch. 2 - A resistor with a current of 2 A through it in an...Ch. 2 - If 5741015 electrons flow through a speaker wire...Ch. 2 - A 120 V source is to be connected to a 1500...Ch. 2 - Determine the resistance and tolerance of each...Ch. 2 - Prob. 39PCh. 2 - Through which resistor in Figure 2-70 is there...Ch. 2 - In Figure 2-70, show the proper placement of...Ch. 2 - Show the proper placement of voltmeters to measure...Ch. 2 - Devise a switch arrangement where by two voltage...
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