railway RRB JE (CBT I + CBT II) Mock Test 2024 Analog Electronics Op-Amp and Its Applications

A second-order RC lowpass filter is using OPAMP and two pairs of R and C. If the cutoff frequency is 2.2 kHz, and the value of capacitance is 22 nF, find the value of R.

1
4.7 k
2
3.3 k
3
2.2 k
4
1.0 k
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