1.

What is the roll-off rate of single order filter?(a) 20dB/decade(b) 5dB/octave(c) 40dB/decade(d) 10dB/octaveI had been asked this question by my college director while I was bunking the class.This is a very interesting question from General Frequency Consideration topic in portion Transistor Biasing and Low Frequencies of Analog Circuits

Answer»

Correct option is (a) 20dB/decade

Easy explanation: At lower and HIGHER frequencies the GAIN is decreasing. This fall or DECREASE in gain is known as roll-off rate. It is COMMONLY specified in dB/octave or dB/decade. For a single order FILTER, the roll-off rate is 6dB/octave or 20dB/decade.



Discussion

No Comment Found

Related InterviewSolutions