Floyd Self-test in Active Filters

(Last Updated On: January 8, 2020)

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

If you are looking for the Multiple Choice Questions in Floyd’s Electronic Devices proceed to

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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