Floyd Self-test in Active Filters

(Last Updated On: December 8, 2017)

Floyd Self-test in Chapter 15 of Electronic Devices

This is the Self-test in Chapter 15: Active Filters from the book Electronic Devices Conventional Current Version, 9th edition by Thomas L. Floyd. If you are looking for a reviewer in Electronics Engineering this will definitely help you before taking the Board Exam.

Floyd Self-test Chapter 15 Topic Outline

  • Floyd Self-test in Basic Filter Responses of Active Filters
  • Floyd Self-test in Filter Response Characteristics
  • Floyd Self-test in Active Low-Pass Filters
  • Floyd Self-test in Active High-Pass Filters
  • Floyd Self-test in Active Band-Pass Filters
  • Floyd Self-test in Active Band-Stop Filters
  • Floyd Self-test in Filter Response Measurements

Start Practice Exam Test Questions

Choose the letter of the best answer in each questions.

1. The term pole in filter terminology refers to

  • (a) a high-gain op-amp
  • (b) one complete active filter
  • (c) a single RC circuit
  • (d) the feedback circuit

2. A single resistor and a single capacitor can be connected to form a filter with a roll-off rate of

  • (a) -20 dB/decade
  • (b) -40 dB/decade
  • (c) -6 dB/decade
  • (d) answers (a) and (c)

3. A band-pass response has

  • (a) two critical frequencies
  • (b) one critical frequency
  • (c) a flat curve in the passband
  • (d) a wide bandwidth

4. The lowest frequency passed by a low-pass filter is

  • (a) 1 Hz
  • (b) 0 Hz
  • (c) 10 Hz
  • (d) dependent on the critical frequency

5. The quality factor (Q) of a band-pass filter depends on

  • (a) the critical frequencies
  • (b) only the bandwidth
  • (c) the center frequency and the bandwidth
  • (d) only the center frequency

6. The damping factor of an active filter determines

  • (a) the voltage gain
  • (b) the critical frequency
  • (c) the response characteristic
  • (d) the roll-off rate

7. A maximally flat frequency response is known as

  • (a) Chebyshev
  • (b) Butterworth
  • (c) Bessel
  • (d) Colpitts

8. The damping factor of a filter is set by

  • (a) the negative feedback circuit
  • (b) the positive feedback circuit
  • (c) the frequency-selective circuit
  • (d) the gain of the op-amp

9. The number of poles in a filter affect the

  • (a) voltage gain
  • (b) bandwidth
  • (c) center frequency
  • (d) roll-off rate

10. Sallen-Key low-pass filters are

  • (a) single-pole filters
  • (b) second-order filters
  • (c) Butterworth filters
  • (d) band-pass filters

11. When low-pass filters are cascaded, the roll-off rate

  • (a) increases
  • (b) decreases
  • (c) does not change

12. In a high-pass filter, the roll-off occurs

  • (a) above the critical frequency
  • (b) below the critical frequency
  • (c) during the mid range
  • (d) at the center frequency

13. A two-pole Sallen-Key high-pass filter contains

  • (a) one capacitor and two resistors
  • (b) two capacitors and two resistors
  • (c) a feedback circuit
  • (d) answers (b) and (c)

14. When a low-pass and a high-pass filter are cascaded to get a band-pass filter, the critical frequency of the low-pass filter must be

  • (a) equal to the critical frequency of the high-pass filter
  • (b) less than the critical frequency of the high-pass filter
  • (c) greater than the critical frequency of the high-pass filter

15. A state-variable filter consists of

  • (a) one op-amp with multiple-feedback paths
  • (b) a summing amplifier and two integrators
  • (c) a summing amplifier and two differentiators
  • (d) three Butterworth stages

16. When the gain of a filter is minimum at its center frequency, it is

  • (a) a band-pass filter
  • (b) a band-stop filter
  • (c) a notch filter
  • (d) answers (b) and (c)

Complete List of Floyd Self-test in Electronic Devices

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