Negative feedback is employed in __________________?
Negative feedback is employed in __________________? A. Oscillators B. RectifiersC. Amplifiers D. None of the above
Negative feedback is employed in __________________? A. Oscillators B. RectifiersC. Amplifiers D. None of the above
A feedback circuit usually employs _________________ network? A. Resistive B. Capacitive C. Inductive D. None of the above
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
If the feedback fraction of an amplifier is 0.01, then voltage gain with negative feedback is approximately________________? A. 500B. 100 C. 1000 D. 5000
The gain of an amplifier with feedback is known as____________gain? A. Resonant B. Open loopC. Closed loop D. None of the above
If the output of an amplifier is 10 V and 100 mV from the output is fed back to the input, then feedback fraction is_____________? A. 10 B. 1C. 01 D. 15
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
When negative voltage feedback is applied to an amplifier, its voltage gain ____________? A. Is increasedB. Is reduced C. Remains the same D. None of the above
The output impedance of an emitter follower is______________? A. High B. Very high C. Almost zeroD. Low