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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
- The mass of a lift is 2000kg. When the tension in the supporting cable is 28000N, then its acceleration is
- As a light wave travels from one medium to another which of its following properties
- The flux linked with a circuit is given by φ=t³+3t-7. The graph between time
- A potentiometer wire has length 4m resistance 8Ω. The resistance that must be connected
- If a magnet is suspended at an angle 30⁰ to the magnetic meridian, the dip needle
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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