Electronic Devices and Circuit Theory:: Op-Amp Applications

Calculate the cutoff frequencies of a bandpass filter with R1 = R2 = 5 kΩ and C1 = C2 = 0.1 μF.

A. fOL = 318.3 Hz, fOH = 318.3 Hz
B. fOL = 636.6 Hz, fOH = 636.6 Hz
C fOL = 318.3 Hz, fOH = 636.6 Hz
D. fOL = 636.6 Hz, fOH = 318.3 Hz

Calculate the cutoff frequency of a first-order low-pass filter for R1 = 2.5 kΩ and C1 = 0.05 μF.

A. 1.273 kHz
B. 12.73 kHz
C 127.3 kHz
D. 127.30 Hz

A filter that provides a constant output from dc up to a cutoff frequency and passes no signal above that frequency is called a ________ filter.

A. low-pass
B. high-pass
C bandpass

A difference between a passive filter and an active filter is that a passive filter uses amplifier(s), but an active filter does not.

A. True
B. False

When a number of stages are connected in parallel, the overall gain is the product of the individual stage gains.

A. True
B. False

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