Explanation: For low frequency applications more number of turns of wire must be used, which in turn adds to the series resistance degrading inductor’s performance. 6. Find out the incorrect statement about active and passive filters.
A. Gain is not attenuated in active filter
B. Passive filters are less expensive
C. Active filter does not cause loading of source
D. Passive filters are difficult to tune or adjust
Answer:A
Explanation: For low frequency applications more number of turns of wire must be used, which in turn adds to the series resistance degrading inductor’s performance. 6. Find out the incorrect statement about active and passive filters.
A. Gain is not attenuated in active filter B. Passive filters are less expensive C. Active filter does not cause loading of source D. Passive filters are difficult to tune or adjust
Explanation: Typically active filters are more economical than passive filters. This is because of the variety of cheaper op-amp and the absence of inductor’s. 7. What are the most commonly used active filters?