What do you mean by 3 dB cutoff frequency? Why is it 3 dB,
not 1 dB?

Answer Posted / mrudula

3db implies 70%(o.7o7) of the power,i'e we r interested to
consider the bandwidth range from peak to 70% b'coz uptp
70% its reliable.hence 3db is called as half power freq

Is This Answer Correct ?    73 Yes 111 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

pls send me the placement papers and anyother useful information to sureshec127@gmail.com. STREAM: ELECTRONICS AND COMMUNICATION

1407


Can any one please send me the hpcl question papers or pattern for ece branch please mail to sweetyastweety@gmail.com

1518


What are the advantages of current commuted chopper?

652


what is associate law?

648


Define awgn.

586






What are the commonly used filters?

600


how synchronous motor use to improve the power factor

1696


What are the applications of flip-flops?

525


What is the difference between binary code and bcd?

617


Given a light which may blink at a random time. There are two players who has to press a button when light blinks. The person who gets 20 pts first is declared as winner. Design FSM for this gaming event.

1881


i am fresher for giving intervivew in it sector and also sales electronics. all about related qustions send me please?

1716


sir/madam, i've applied for the post of section engineer. i shall highly be obliged if you could help me out with some sample papers.

1404


Explain the purpose of the package around a microprocessor silicon die?

542


What are the important ic technologies used?

629


Explain why the shape of op-amp is triangular not other shape?

591