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An ideal OPAMP circuit with a sinusoidal input is shown in the figure. The 3 dB frequency is the frequency at which the magnitude of the voltage gain decreases by 3 dB from the maximum value. Which of the options is/are correct?
  • a)
    The circuit is a low pass filter
  • b)
    The 3-dB frequency is 1000/3 rad/s
  • c)
    The 3-dB frequency is 1000 rad/s
  • d)
    The circuit is a high pass filter
Correct answer is option 'C,D'. Can you explain this answer?
Most Upvoted Answer
An ideal OPAMP circuit with a sinusoidal input is shown in the figure...
Given circuit is shown below,
The transfer function of above circuit,
Put s = jω ,
At ω = 0, T (0) = 0
At ω = ∞, T(∞) = R2/R1
So, circuit behave as HPF, because it passes only high frequency and block low frequency. The 3 dB frequency of practical differentiator circuit is,
Hence, the correct options are (C) & (D).
Free Test
Community Answer
An ideal OPAMP circuit with a sinusoidal input is shown in the figure...
Given circuit is shown below,
The transfer function of above circuit,
Put s = jω ,
At ω = 0, T (0) = 0
At ω = ∞, T(∞) = R2/R1
So, circuit behave as HPF, because it passes only high frequency and block low frequency. The 3 dB frequency of practical differentiator circuit is,
Hence, the correct options are (C) & (D).
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An ideal OPAMP circuit with a sinusoidal input is shown in the figure. The 3 dB frequency is the frequency at which the magnitude of the voltage gain decreases by 3 dB from the maximum value. Which of the options is/are correct?a)The circuit is a low pass filterb)The 3-dB frequency is 1000/3 rad/sc)The 3-dB frequency is 1000 rad/sd)The circuit is a high pass filterCorrect answer is option 'C,D'. Can you explain this answer?
Question Description
An ideal OPAMP circuit with a sinusoidal input is shown in the figure. The 3 dB frequency is the frequency at which the magnitude of the voltage gain decreases by 3 dB from the maximum value. Which of the options is/are correct?a)The circuit is a low pass filterb)The 3-dB frequency is 1000/3 rad/sc)The 3-dB frequency is 1000 rad/sd)The circuit is a high pass filterCorrect answer is option 'C,D'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about An ideal OPAMP circuit with a sinusoidal input is shown in the figure. The 3 dB frequency is the frequency at which the magnitude of the voltage gain decreases by 3 dB from the maximum value. Which of the options is/are correct?a)The circuit is a low pass filterb)The 3-dB frequency is 1000/3 rad/sc)The 3-dB frequency is 1000 rad/sd)The circuit is a high pass filterCorrect answer is option 'C,D'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An ideal OPAMP circuit with a sinusoidal input is shown in the figure. The 3 dB frequency is the frequency at which the magnitude of the voltage gain decreases by 3 dB from the maximum value. Which of the options is/are correct?a)The circuit is a low pass filterb)The 3-dB frequency is 1000/3 rad/sc)The 3-dB frequency is 1000 rad/sd)The circuit is a high pass filterCorrect answer is option 'C,D'. Can you explain this answer?.
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