Electronics - Operational Amplifiers - Discussion
Discussion Forum : Operational Amplifiers - General Questions (Q.No. 20)
20.
What is the cutoff frequency of this low-pass filter?
Discussion:
24 comments Page 3 of 3.
Praveen reddy said:
8 years ago
According to me, the correct ans is 4.820 khz.
Mtarvina said:
7 years ago
The answer should be 4.8kHz. LM741 BW is in MHz range so it does not affect the overall cut-off. Additionally, the op-amp is configured as a buffer with ideally infinite input impedance. Thus cut off should be the same as the cut-off of passive RC LPF.
Gayatri varpe said:
3 years ago
F = 1/2πRC.
F = 1/2π*-33k*0.001*10^-6.
F = 4.8kHz.
F = 1/2π*-33k*0.001*10^-6.
F = 4.8kHz.
(1)
Aditya said:
2 years ago
I am also getting 4.820khz.
Anyone, please explain the correct answer.
Anyone, please explain the correct answer.
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