Active Filters Questions and Answers
Active Filters questions with answers are a crucial topic in electronics, particularly for GATE, ECE, and PSU aspirants. These questions test understanding of filter design, frequency response, and operational amplifier applications. Practicing programming questions and answers related to Active Filters helps in mastering the theoretical and practical aspects of circuit behavior. This section provides well-structured questions with detailed solutions to strengthen your grasp of analog and digital filtering concepts for exams and interviews.
Active Filters
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26 questions
1. A ________ filter rejects all frequencies within a specified band and passes all those outside this band.
- low-pass
- high-pass
- band-pass
- band-stop
2. Filters with the ________ characteristic are useful when a rapid roll-off is required because it provides a roll-off rate greater than –20/dB/decade/pole.
- Butterworth
- Chebyshev
- Bessel
- [NIL]
3. A ________ filter significantly attenuates all frequencies below fc and passes all frequencies above fc.
- low-pass
- high-pass
- band-pass
- band-stop
4. The bandwidth in a ________ filter equals the critical frequency.
- low-pass
- high-pass
- band-pass
- band-stop
5. A ________ filter rejects all frequencies within a specified band and passes all those outside this band.
- low-pass
- high-pass
- band-pass
- band-stop
6. Filters with the ________ characteristic are useful when a rapid roll-off is required because it provides a roll-off rate greater than –20/dB/decade/pole.
- Butterworth
- Chebyshev
- Bessel
- [NIL]
7. A ________ filter significantly attenuates all frequencies below fc and passes all frequencies above fc.
- low-pass
- high-pass
- band-pass
- band-stop
8. The bandwidth in a ________ filter equals the critical frequency.
- low-pass
- high-pass
- band-pass
- band-stop
9. Filters with the ________ characteristic are used for filtering pulse waveforms.
- Butterworth
- Chebyshev
- Bessel
- [NIL]
10. Which filter exhibits a linear phase characteristic?
- Bessel
- Butterworth
- Chebyshev
- all of the above