Last Updated on Aug 25, 2016
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Name: Power and Power factor objective question answer : Electrical Quiz
Subject: Network Analysis and Synthesis
Topic: Power and Power factor
Questions: 11 Objective Type
Time Allowed: 15 Minutes
Important for: Electrical Engineering, Electronics Engineering, Robotics Engineering students and professional for University exam, GATE and Public Sector Job written test.
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- Review
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Question 1 of 11
1. Question
1 pointsApparent power is expressed in
Correct
Incorrect
Unattempted
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Question 2 of 11
2. Question
1 pointsA power factor of ‘1’ indicates
Correct
Incorrect
Unattempted
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Question 3 of 11
3. Question
1 pointsA power factor of 0 indicates
Correct
Incorrect
Unattempted
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Question 4 of 11
4. Question
1 pointsFor a certain load, the true power is 100 W and the reactive power is 100 VAR. What is the apparent power?
Correct
Incorrect
Unattempted
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Question 5 of 11
5. Question
1 pointsIf a load is purely resistive and the true power is 5W, what is the apparent power?
Correct
Incorrect
Unattempted
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Question 6 of 11
6. Question
1 pointsTrue power is defined as
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Incorrect
Unattempted
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Question 7 of 11
7. Question
1 pointsIn a certain series RC circuit, the true power is 2W, and the reactive power is 3.5 VAR. What is the apparent power?
Correct
Incorrect
Unattempted
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Question 8 of 11
8. Question
1 pointsIf the phase angle θ is 45°, what is the power factor?
Correct
Incorrect
Unattempted
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Question 9 of 11
9. Question
1 pointsTo which component in an RC circuit is the power dissipation due?
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Unattempted
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Question 10 of 11
10. Question
1 pointsA two element series circuit with an instantaneous current I=4.24 sin(5000 t +45°) A has a powe of 180 watts and a power factor of 0.8 lagging. The inductance of the circuit must have the value.
Correct
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Unattempted
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Question 11 of 11
11. Question
1 pointsWhat is the phase angle between the inductor current and the applied voltage in a parallel RL circuit?
Correct
Incorrect
Unattempted