Q. A feedback amplifier has an open loop gain of -100. If 4% of the output is fed back in a degenerative loop, what is the closed loop gain of the amplifier?

Option
a) 33.3
b) 25
c) 20
d) 25

• a. -33.3
  b. -25
  c. -20
  d. + 25
• 10 years agoHelpfull: Yes(0) No(3)
• option a
  A(closed)=A/(1+Ab)
  = -100/(1-4)
  =33.3
• 7 years agoHelpfull: Yes(0) No(1)