ELECTRICITY FOR TRADES (LOOSELEAF)
3rd Edition
ISBN: 9781260437454
Author: Petruzella
Publisher: MCG
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Textbook Question
Chapter 6.2, Problem 3RQ
Series analog ohmmeters have nonlinear scales. Why?
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Mention applications of a resistance strain gauge for measurement of non-electric quantities.
What minimum value of series
resistance is required when three
10-watt, 10-volt, 1000-mA zener
diodes are connected in series to
obtain a 30-volt regulated output
from a 45 volt d.c. power source ?
R
E₁-45 V
Eo=30 V
ļ
O 30 ohm
O 15 ohm
O 35 ohm
O 550hm
Explain the loading effect on voltmeters and ammeters in detail.
Chapter 6 Solutions
ELECTRICITY FOR TRADES (LOOSELEAF)
Ch. 6.1 - Explain how measurements are made using an analog...Ch. 6.1 - Prob. 2RQCh. 6.1 - Name the three basic metering functions that can...Ch. 6.1 - What is the purpose of the multimeter function...Ch. 6.1 - What is the purpose of the multimeter range...Ch. 6.1 - An analog voltmeter uses a single scale calibrated...Ch. 6.1 - Unlike analog multimeters, digital multimeters...Ch. 6.1 - Prob. 8RQCh. 6.1 - How are voltmeters connected relative to the...Ch. 6.1 - Digital voltmeters have little or no loading...
Ch. 6.1 - A digital multimeter is used to measure a DC...Ch. 6.1 - Define voltage drop.Ch. 6.1 - How are ground-referenced voltage measurements...Ch. 6.1 - State one advantage and one limitation of a...Ch. 6.1 - A noncontact voltage detector is to be used to...Ch. 6.1 - When measuring voltages and currents of unknown...Ch. 6.1 - How must ammeters be connected relative to the...Ch. 6.1 - Ammeters are required to have very low resistance...Ch. 6.1 - What is the advantage of taking a current reading...Ch. 6.1 - Explain how a clamp-on ammeter measures current...Ch. 6.1 - While attempting a voltage measurement across a...Ch. 6.1 - A clamp-on ammeter is to be used to determine the...Ch. 6.2 - What four basic components make up the internal...Ch. 6.2 - How is the pointer of an analog-type ohmmeter set...Ch. 6.2 - Series analog ohmmeters have nonlinear scales....Ch. 6.2 - What does a resistance reading of OL on a digital...Ch. 6.2 - A multimeter set to measure resistance is...Ch. 6.2 - When doing in-circuit component resistance...Ch. 6.2 - Explain the purpose of the multimeter continuity...Ch. 6.2 - An ohmmeter is connected across the two leads of a...Ch. 6.2 - Convert each of the following digital multimeter...Ch. 6.2 - Give an example of what might cause the occurrence...Ch. 6.2 - What energy-level category of multimeter is...Ch. 6.2 - A simple resistance measurement is made to test...Ch. 6.2 - What type of hand protection may be required when...Ch. 6.2 - Compare the input impedance of analog and digital...Ch. 6.2 - Define meter accuracy.Ch. 6.2 - Define meter resolution.Ch. 6.2 - What protection is afforded by the fuse connected...Ch. 6.2 - Prob. 18RQCh. 6.2 - The diode test function of a DMM is to be used to...Ch. 6.2 - Under what condition will true RMS and averaging...
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- What minimum value of series resistance is required when three 10-watt, 10-volt, 1000-mA zener diodes are connected in series to obtain a 30-volt regulated output from a 45 volt d.c. power source? R E₁-45 V Eq=30 V 30 ohm O 15 ohm 35 ohm O 55ohmarrow_forwarda. Describe the action of the circuit shown in the figure-1 below SPEAKER Vin REarrow_forwardWhat minimum value of series resistance is required when three 10-watt, 10-volt, 1000-mA zener diodes are connected in series to obtain a 30-volt regulated output from a 45 volt d.c. power source ? R w E₁-45 V Eo= 30 V ↓arrow_forward
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