OP Amp MCQ Questions & Answers | Electrical Engineering

A. very high

B. very low

C. always unity

D. unpredictable

A. 79.5mV

B. 395mV

C. 795mV

D. 39.5mV

A. a mechanical ground

B. an a.c. ground

C. a virtual ground

D. an ordinary ground

A. A ramp

B. A sinusoidal wave

C. A rectangular wave

D. A triangular wave with dc bias

A. $$10\pi {\text{V}}$$

B. $$5{\text{V}}$$

C. $$\frac{5}{\prod }{\text{V}}$$

D. $$\frac{5}{{2\prod }}{\text{V}}$$

A. 1.273 kHz

B. 12.73 kHz

C. 127.3 kHz

D. 127.3 Hz

A. 90 V/µs

B. 0.67 V/µs

C. 1.5 V/µs

D. none of these

A. $$\infty $$

B. 120k

C. 110k

D. 10k

A. equal to the input

B. increased

C. fed back to the inverting input

D. fed back to the noninverting input

A. r_e

B. 2r_e

C. $$\frac{{{{\text{r}}_{\text{e}}}}}{2}$$

D. 2R_E