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ALTERNATING CURRENT FUNDAMENTALS QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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ALTERNATING CURRENT FUNDAMENTALS QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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ALTERNATING CURRENTFUNDAMENTALS QUESTIONS AND
ANSWERS WITH SOLUTIONS 2024
The __________ of an AC power source changes periodically. - ANSWER Polarity
List the three requirement for inducing a voltage. - ANSWER - Conductor
- Magnetic field
- Relative motion
When a conductor rotating in a magnetic field is cutting through the maximum number of flux lines: -
ANSWER Maximum voltage is induced
When a sine wave is used to represent voltage, voltage below the horizontal line is negative. - ANSWER
True
The number of cycles completed each second by a given AC voltage is called __________ and is
measured in __________. - ANSWER Frequency and hertz
The letters used to express effective AC values are __________. - ANSWER RMS
The physical property of all AC circuits that opposes any change in __________ is called inductance. -
ANSWER Current flow
__________ is the measure of the opposition to current flow that is created by inductance. - ANSWER
Inductive reactance
When current flowing through a conductor is increasing: - ANSWER The magnetic field around the
conductor is building up
When CEMF opposes the applied voltage in an AC circuit, it has the effect of increasing current. -
ANSWER False. Limiting current
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