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If the bandwidth of a resonant circuit is 20 kHz and the lower half frequency is 240 kHz then the value of upper half power frequency is  _____ and Q-factor is _______ .
  • a)
    280 kHz, 14.5
  • b)
    280 kHz, 12.5
  • c)
    260 kHz, 12.5
  • d)
    260 kHz, 14.5
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
If the bandwidth of a resonant circuit is 20 kHz and the lower half fr...
Concept:
Half power frequencies:

Half power frequencies are the frequencies at which current is times of maximum current.
The half-power frequencies are shown in the figure below.
f0 is the resonant frequency
f1 is the lower half-power frequency
f2 is the higher half-power frequency
The relation between them is,

Where Q is the quality factor

Bandwidth = 20 kHz
Lower half-power frequency (f1)=240kHz
From equation (1)

From equation (2)

Q factor of the resonant circuit is given as:

∴ The value of upper half power frequency is 260 kHz and Q-factor is 12.5.
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If the bandwidth of a resonant circuit is 20 kHz and the lower half frequency is 240 kHz then the value of upper half power frequency is _____ and Q-factor is _______ .a)280 kHz, 14.5b)280 kHz, 12.5c)260 kHz, 12.5d)260 kHz, 14.5Correct answer is option 'C'. Can you explain this answer?
Question Description
If the bandwidth of a resonant circuit is 20 kHz and the lower half frequency is 240 kHz then the value of upper half power frequency is _____ and Q-factor is _______ .a)280 kHz, 14.5b)280 kHz, 12.5c)260 kHz, 12.5d)260 kHz, 14.5Correct answer is option 'C'. Can you explain this answer? for RRB NTPC/ASM/CA/TA 2024 is part of RRB NTPC/ASM/CA/TA preparation. The Question and answers have been prepared according to the RRB NTPC/ASM/CA/TA exam syllabus. Information about If the bandwidth of a resonant circuit is 20 kHz and the lower half frequency is 240 kHz then the value of upper half power frequency is _____ and Q-factor is _______ .a)280 kHz, 14.5b)280 kHz, 12.5c)260 kHz, 12.5d)260 kHz, 14.5Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for RRB NTPC/ASM/CA/TA 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the bandwidth of a resonant circuit is 20 kHz and the lower half frequency is 240 kHz then the value of upper half power frequency is _____ and Q-factor is _______ .a)280 kHz, 14.5b)280 kHz, 12.5c)260 kHz, 12.5d)260 kHz, 14.5Correct answer is option 'C'. Can you explain this answer?.
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