Finding Cut-Off Frequencies in a Circuit: A Lab Experiment

[basimjmal]

i did the lab and find all varible
but I can understand how find cut-off frequency
the question is
From you result in table Find the cut-off frequency


circuit figure

lab result
http://img19.imageshack.us/img19/6967/80959768.png


thanks so much in advance

 

[uskalu]

go to this link...there is a answere for ur queston...it seem to be as band reject filter..
check this out

http://knowhowstuff.blogspot.com/search/label/Physics%20Q%20and%20A

 

[CEL]

The cutoff frequencies arethe frequencies where the gain is 3dB below the gain at the the middle frequencies.
Since your gain at middle frequency is 17.6 dB, you should extend your measurements below 20HZ and above 20kHz (probably several MHz), to find the cutoff frequencies.