The filter in Figure 18-1 has a Roll-off of:
A) -40 dB per decade
B) -3 dB per decade
C) -20 dB per decade
D) -6 dB per decade

Name: The filter in Figure 18-1 has a Roll-off of: A) -40 dB per decade B) -3 dB per decade C) -20 dB per decade D) -6 dB per decade
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Question

Quizplus · Accepted Answer

The roll-off rate of a filter is typically -20 dB per decade for each order of the filter. The filter shown or described is likely a first-order filter, which has a roll-off rate of -20 dB per decade.

The Filter in Figure 18-1 Has a Roll-Off Of