6. Calculate the cutoff frequency of a first-order low-pass filter for R1 = 2.5kΩ and C1 = 0.05μF A. 1.273 kHz B. 12.73 kHz C. 127.3 kHz D. 127.3 Hz Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
7. The output of a particular OP-amp increases 8V in 12µs. The slew rate is A. 90 V/µs B. 0.67 V/µs C. 1.5 V/µs D. none of these Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
8. The approximate input impedance of the opamp circuit which has Ri=10k, Rf=100k, RL=10k A. ∞ B. 120k C. 110k D. 10k Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
9. For an OP-amp with negative feedback, the output is . A. equal to the input B. increased C. fed back to the inverting input D. fed back to the noninverting input Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
10. The common mode voltage gain of a differential amplifier is equal to RC divided by A. re B. 2re C. $$\frac{{{{\text{r}}_{\text{e}}}}}{2}$$ D. 2RE Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
