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Electrical Level 2 Module 1 Alternating Current Questions and Answers | Latest Version | 2024/2025 | Correct & Verified $9.41
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Electrical Level 2 Module 1 Alternating Current Questions and Answers | Latest Version | 2024/2025 | Correct & Verified
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Electrical Level 2 Module 1 Alternating Current Questions and Answers | Latest Version | 2024/2025 | Correct & Verified What is the role of the rotor in an AC generator? The rotor is the rotating component that creates a magnetic field, inducing current in the stator. Why is AC preferred ...

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  • December 14, 2024
  • 10
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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Electrical Level 2 Module 1 Alternating
Current Questions and Answers | Latest
Version | 2024/2025 | Correct & Verified
What is the role of the rotor in an AC generator?


✔✔The rotor is the rotating component that creates a magnetic field, inducing current in the

stator.




Why is AC preferred for transmitting electricity over long distances?


✔✔AC is preferred because its voltage can be stepped up or down using transformers, reducing

energy losses during transmission.




What is the significance of 120-degree phase separation in a three-phase system?


✔✔The 120-degree phase separation ensures a constant power delivery and reduces vibration in

equipment.




What happens when a capacitor and an inductor are connected in series in an AC circuit?


✔✔They create a resonant circuit where the inductive and capacitive reactances cancel each

other out.




1

, What does a lagging current indicate in an AC circuit?


✔✔A lagging current indicates that the current is behind the voltage, typically due to inductive

loads.




How is the peak-to-peak voltage of an AC waveform calculated?


✔✔The peak-to-peak voltage is calculated by doubling the peak voltage.




What is the role of the stator in an AC generator?


✔✔The stator is the stationary part of the generator where the induced current flows in its

windings.




What happens to the inductive reactance of a circuit if the frequency of the AC supply is

doubled?


✔✔The inductive reactance also doubles because it is directly proportional to the frequency.




What type of power is measured in volt-amperes (VA)?


✔✔Apparent power in an AC circuit is measured in volt-amperes.




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