ELECTRICITY FOR TRADES (LOOSELEAF)
3rd Edition
ISBN: 9781260437454
Author: Petruzella
Publisher: MCG
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Textbook Question
Chapter 8.1, Problem 17RQ
What is the color code for a 365-Ω five-band precision resistor with a tolerance of ±5 percent?
Expert Solution & Answer
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What is the corrosion current when the circuit
resistance is 0.25ohms and the potential
difference 0.5 volts?
The convention for voltmeters is to use a black wire for the negative reference terminal and a red wire for the positive reference terminal.
Explain why two wires are required to measure a voltage.
If the wires into the voltmeter are swapped by accident, what will happen during the next measurement?
If the measured values for resistors #1, #2 and # 3 are 552, 549 and 549 Ohms
calculate the %error (measured difference from expected value as a percentage) for
each resistor. Are they within tolerance (or specification) of manufacturer?
#1 98.4% #2 97.9% #3 97.9% Yes within specification
a.
b. #1 1.6% #2 2.1% #3 2.1% Yes within specification
#1 1.6% #2 2.1% #3 2.1% No outside specification
Ос.
Use Ohm's Law to calculate the equivalent resistance of R12, R23 and R123 (as
specified in the lab manual) using measured resistances #1 552 Ohms, #2 549
Ohms, #3 549 Ohms
R,
R2
R,=
R12
R23
Chapter 8 Solutions
ELECTRICITY FOR TRADES (LOOSELEAF)
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Ch. 8.1 - Compare the connection and control function of a...Ch. 8.1 - If the wiper arm of a linear potentiometer is...Ch. 8.1 - Explain how a 10-turn trim pot is adjusted.Ch. 8.1 - Compare the way the resistance varies in a linear...Ch. 8.1 - Identify the color bands for each of the following...Ch. 8.1 - A 680- resistor has a rated tolerance of 10...Ch. 8.1 - What is the color code for a 365- five-band...Ch. 8.1 - Determine the resistance value and percentage of...Ch. 8.1 - Determine the resistance value and percentage of...Ch. 8.2 - Calculate the total resistance for each of the...
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