# Electronic Devices - Op-Amp Applications

### Exercise :: Op-Amp Applications - General Questions

26.

Calculate the output voltage if V1 = –3.3 V and V2 = 0.8 V. A. 0 V B. 6.6 V C. –4 V D. 2 V

Explanation:

Vo = -Rf(V1/R1 + V2/R2)

27.

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

 A. True B. False

Explanation:

No answer description available for this question. Let us discuss.

28.

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

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

Explanation:

No answer description available for this question. Let us discuss.

29.

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

Explanation:

No answer description available for this question. Let us discuss.

30.

Calculate the output voltage if V1 = 0 V and V2 = 0.2 V. A. 0 V B. –6.6 V C. –4 V D. 2 V