In a series RLC circuit, what is the nature of the power factor of the circuit if the frequency is very high
Power System

Quiz
•
Instructional Technology
•
1st Grade
•
Medium
Pain Pain
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24 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
unity
leading
lagging
cannot be determined
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which of the following is not a unit of electrical energy?
W
Ws
J
kWh
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What does a positive power in an electrical element indicate?
Element may absorb or supply powe
The sign of the power does not matter
The element is supplying power
The element is absorbing power
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
In three phase system, the three voltages (or currents) differ in phase by ____ electrical degrees from each other in a particular sequence.
30
120
60
90
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which of the following elements of electrical engineering cannot be analyzed using Ohm’s law?
capacitors
resistors
inductors
transistors
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
______ states that the total electric flux through any closed surface is equal to the charge enclosed by that surface.
Faraday's law
Gauss' law
Lenz's law
Maxwell's law
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What part of an electric machine will the temperature rise mainly affect?
speed of the machine
conductance of the windings
insulation of the machine
output voltage of the machine
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