An amplifier without feedback has a voltage gain of 50,input resistance os 1 K‚Äö√ë¬∂ & Output resistance of 2.5K‚Äö√ë¬∂.The input resistance of the current shunt negative feedback amplifier using the above amplifier with a feedbacik factor of 0.2 is#

An amplifier without feedback has a voltage gain of 50,input resistanc

1.	An amplifier without feedback has a voltage gain of 50,input resistance os 1 K‚Äö√ë¬∂ & Output resistance of 2.5K‚Äö√ë¬∂.The input resistance of the current shunt negative feedback amplifier using the above amplifier with a feedbacik factor of 0.2 is#
A.	1/11K‚Äö√ë¬∂
B.	1/5K‚Äö√ë¬∂
C.	5K‚Äö√ë¬∂
D.	11K‚Äö√ë¬∂
Answer» B. 1/5K‚Äö√ë¬∂