11. Negative feedback is employed in ___________ A. Oscillators B. Rectifiers C. Amplifiers D. None of the above 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
12. When voltage feedback (negative) is applied to an amplifier, its input impedance ___________ A. Is decreased B. Is increased C. Remains the same D. None of the above 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
13. When current feedback (negative) is applied to an amplifier, its input impedance ___________ A. Is decreased B. Is increased C. Remains the same D. None of the above 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
14. If voltage feedback (negative) is applied to an amplifier, its output impedance ___________ A. Remains the same B. Is increased C. Is decreased D. None of the above 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
15. If the feedback fraction of an amplifier is 0.01, then voltage gain with negative feedback is approximately___________ A. 500 B. 100 C. 1000 D. 5000 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
16. The value of negative feedback fraction is always ___________ A. Less than 1 B. More than 1 C. Equal to 1 D. None of the above 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
17. When current feedback (negative) is applied to an amplifier, its output impedance A. Is increased B. Is decreased C. Remains the same D. None of the above 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
18. Emitter follower is used for ___________ A. Current gain B. Impedance matching C. Voltage gain D. None of the above 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