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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 body with mass 5 kg is acted upon a force F=(-3i+4j) N.If its initial velocity at
- Three blocks A,B and C of masses 4 kg, 2 kg and 1 kg respectively are in contact
- A solid cylinder of mass 50kg and radius 0.5 m is, free to rotate about the horizontal axis
- The de-Broglie wavelength of an electron moving with a velocity 1.5×10⁸ ms⁻¹ is equal
- Two coaxial solenoids are made by winding thin insulated wire over a pipe
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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