Electronic Devices-Active Filters
Electronic Devices-Active Filters
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