physics questions
Evengrowth
ecet_220_week_7_problems-now_now.docxChapter 9 Problems: 1, 3, 4, 5, 11, 17, and 19
1 . Identify each type of filter response (low-pass, high-pass, band-pass, or band-stop) in Figure 9–28 .
FIGURE 9–28
3 . A single-pole high-pass filter has a frequency-selective network with R = 2.2 kΩ and C = 0.0015 μF. What is the critical frequency? Can you determine the bandwidth from the available information?
4. What is the roll-off rate of the filter described in Problem 3?
5 . What is the bandwidth of a band-pass filter whose critical frequencies are 3.2 kHz and 3.9 kHz? What is the Q of this filter?
11 . Determine the critical frequency in Figure 9–31 .
FIGURE 9–31
17 . For the filter in Figure 9–32 ,
· (a) How would you increase the critical frequency?
· (b) How would you increase the gain?
FIGURE 9–32
19 . Determine the center frequency and bandwidth for each filter in Figure 9–33 .
FIGURE 9–33
