Electrical Transformers and Rotating Machines
4th Edition
ISBN: 9781305494817
Author: Stephen L. Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 7RQ
An inductor is connected to a 240-V, 1000-Hz line. The circuit current is 0.6 A. What is the inductance of the inductor?
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3. (i) Three identical capacitors are connected in delta with 400 V. If the line current is 12 A
determine the capacitance of each of the capacitors. If the 0
60° then calculate the
power dissipation in kW when it is connected in STAR
ENGG_AC_Quiz-Format_01/2016-17_V02
(ii) Three coils each having resistance 6Q and inductance are connected in star with
415V. If the line current is 30 A, find the value of inductive reactance as well as
inductance value. If 0
45° then calculate the power dissipation in kW when it is
connected in Delta.
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)
34. Four 10 mH inductors are in series. The total inductance is
( a) 40,000 μΗ
(b) 40 mH
(c) 30 H
(d) none of above
Chapter 3 Solutions
Electrical Transformers and Rotating Machines
Ch. 3 - How many degrees are the current and voltage out...Ch. 3 - How many degrees are the current and voltage out...Ch. 3 - To what is inductive reactance proportional?Ch. 3 - Four inductors, each having an inductance of 0.6...Ch. 3 - Three inductors are connected in parallel....Ch. 3 - Prob. 6RQCh. 3 - An inductor is connected to a 240-V, 1000-Hz line....Ch. 3 - Prob. 8RQCh. 3 - Prob. 9RQCh. 3 - An inductor has an inductive reactance of 250 Ω...
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