The first stage of a two-stage amplifier has a voltage gain of 10, a 600 Ω input resistor, a 1600Ω equivalent noise resistance and 27kΩ output resistor. For the second stage, these values are 25, 81kΩ, 19kΩ, and 1MΩ, respectively. Calculate the equivalent input-noise resistance of this two stage amplifier. A. 2,518 kΩ B. 2,518 Ω C. 251.8 Ω D. 12,518 Ω

The first stage of a two-stage amplifier has a voltage gain of 10, a 600 Ω input resistor, a
1600Ω equivalent noise resistance and 27kΩ output resistor. For the second stage, these
values are 25, 81kΩ, 19kΩ, and 1MΩ, respectively. Calculate the equivalent input-noise
resistance of this two stage amplifier.
A. 2,518 kΩ
B. 2,518 Ω
C. 251.8 Ω
D. 12,518 Ω
by

1 Answer

Answer :

B. 2,518 Ω
by

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