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MCQs

Total Questions : 63 | Page 2 of 7 pages
Question 11. Find the value of voltage in the bandwidth range when the maximum value of voltage is 100 V.
  1.    56.65 V
  2.    35.36 V
  3.    45.34 V
  4.    70.72 V
 Discuss Question
Answer: Option D. -> 70.72 V
Answer: (d).70.72 V
Question 12. Shape of the resonance curve depends upon the?
  1.    Q-factor
  2.    Voltage
  3.    Current
  4.    Either voltage or current
 Discuss Question
Answer: Option A. -> Q-factor
Answer: (a).Q-factor
Question 13. Bandwidth is the difference of_____________________ frequencies.
  1.    half power
  2.    full power
  3.    double power
  4.    wattless
 Discuss Question
Answer: Option A. -> half power
Answer: (a).half power
Question 14. Current is maximum at __________ frequency of bandwidth.
  1.    left end
  2.    middle
  3.    right end
  4.    all end
 Discuss Question
Answer: Option B. -> middle
Answer: (b).middle
Question 15. For a sharp resonance, bandwidth is ______________
  1.    low
  2.    high
  3.    zero
  4.    infinity
 Discuss Question
Answer: Option A. -> low
Answer: (a).low
Question 16. If the resonant frequency in a series RLC circuit is 50kHz along with a bandwidth of 1kHz, find the quality factor.
  1.    5
  2.    50
  3.    100
  4.    500
 Discuss Question
Answer: Option B. -> 50
Answer: (b).50
Question 17. Resonance frequency occurs when __________________
  1.    Xₗ=Xc
  2.    Xₗ>Xc
  3.    Xₗ<Xc
  4.    Cannot be determined
 Discuss Question
Answer: Option A. -> Xₗ=Xc
Answer: (a).Xₗ=Xc
Question 18. What happens to the quality factor when resonant frequency increases?
  1.    Increases
  2.    Decreases
  3.    Remains the same
  4.    Becomes zero
 Discuss Question
Answer: Option A. -> Increases
Answer: (a).Increases
Question 19. What happens to the quality factor when the bandwidth increases?
  1.    Increases
  2.    Decreases
  3.    Remains the same
  4.    Becomes zero
 Discuss Question
Answer: Option B. -> Decreases
Answer: (b).Decreases
Question 20. What is the SI unit for quality factor?
  1.    Hz
  2.    kHz
  3.    MHz
  4.    No unit
 Discuss Question
Answer: Option D. -> No unit
Answer: (d).No unit

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