Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Textbook Question
Chapter 12, Problem 17RQ
What are the three types of opposition to current flow that impedance represents?
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4. A circuit contains a 20-2 resistor and
an inductor with an inductance of
0.093 H. If the circuit has a frequency
of 60 Hz, what is the total impedance
of the circuit?
5. An R-L series circuit has a power
factor of 86%. By how many degrees
are the voltage and current out of
phase with each other?
6. An R-L series circuit has an apparent
power of 230 VA and a true power of
180 W. What is the reactive power?
7. The resistor in an R-L series circuit
has a voltage drop of 53 V, and the
inductor has a voltage drop of 28 V.
What is the applied voltage of the
circuit?
DC and AC subject:
1. Consider a wire carrying a current in the presence of a magnetic field, and a given flux density of 0.25 T. If the wire is 1.0 m long and carries a 0.5 A current, what is the magnitude of the force induced in the wire?
2. The wire shown is moving in the presence of a magnetic field. With the information given in the figure, determine the magnitude and direction of the induced voltage in the wire. (see the figure below)
is used to convert resistance
value into voltage value.
Chapter 12 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 12 - The __________is that part of an atom that moves...Ch. 12 - When this part of an atom moves to another atom,...Ch. 12 - State the differences between AC and DC.Ch. 12 - Describe how a meter would be connected in a...Ch. 12 - Describe how an amperage reading would be taken...Ch. 12 - Describe how the total resistance in a series...Ch. 12 - Ohm's law for determining voltage is _______.Ch. 12 - Ohm's law for determining amperage is_________.Ch. 12 - Ohm's law for determining resistance is_______.Ch. 12 - Prob. 10RQ
Ch. 12 - Describe the characteristics of the voltage,...Ch. 12 - If there were a current flowing of 5A in a 120-V...Ch. 12 - If the resistance in a 120-V circuit was 40 , what...Ch. 12 - Electrical power is measured in A. amperes. B....Ch. 12 - The formula for determining electrical power...Ch. 12 - Describe how a step-down transformer differs from...Ch. 12 - What are the three types of opposition to current...Ch. 12 - Prob. 18RQCh. 12 - What does forward bias on a diode mean?Ch. 12 - The unit of measurement for the charge a capacitor...
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