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The voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain without feedback will be
Options
(a) 1.25
(b) 100
(c) 90
(d) 10
Correct Answer:
100
Explanation:
One applies negative feed-back, which reduces the output but makes it very stable. For voltage amplification amplifiers the value of output voltage without the negative feed-back could be very high. The value max shown here is 100.
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Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A uniform rope of length 12 m and mass 6 kg hangs vertically from a rigid support.
- If in a nuclear fusion process, the masses of the fusing nuclei be m₁ and m₂
- A wire is suspended vertically from one of its ends is stretched by attaching a weight
- A car of mass 1000 kg negotiates a banked curve of radius 90 m on a frictionless
- Time period of oscillation of a magnet is 2 sec. When it is remagnetised
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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