1.

The amplifier A shown in the figure has an open-loop gain of 100, input impedance Z1 of 1 kΩ, and output impedance Zo of 100 Ω. If a negative feedback factor β = 0.99 is used, the new values of Z1 and Zo are respectively:

A. 10 Ω and 1 Ω
B. 10 Ω and 10 kΩ
C. 100 kΩ and 1 Ω
D. 100 kΩ and 10 Ω
Answer» D. 100 kΩ and 10 Ω


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