The voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain

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.

admin:

Related Questions

  1. A condenser has a capacity 2 μF and is charged to a voltage of 50 V. The energy
  2. A copper disc of radius 0.1 m is rotated about its centre, with 10 revolutions
  3. 24 cells of emf 1.5 V each having internal resistance of 1 ohm are connected
  4. 540 g of ice at 0° C is mixed with 540 g of water at 80° C. The final temperature
  5. The electric current in AC circuit is given by the relation i-3 sinωt+4 cos ωt.