Below are the answers key for Floyd Self-test in Chapter 15: Active Filters from the book Electronic Devices Conventional Current Version, 9th edition by Thomas L. Floyd.
1. a single RC circuit
2. answers (a) and (c)
3. two critical frequencies
4. dependent on the critical frequency
5. the center frequency and the bandwidth
6. the response characteristic
7. Butterworth
8. the negative feedback circuit
9. roll-off rate
10. second-order filters
11. increases
12. above the critical frequency
13. answers (b) and (c)
14. greater than the critical frequency of the high-pass filter
15. a summing amplifier and two integrators
16. answers (b) and (c)
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