Compute the decibel voltage gain for the amplifier in Problem 20.
Problem 20
Assume a transducer with a Thevenin (unloaded) voltage of•5.0 mV and a Thevenin resistance of 20 kΩ is connected to a two-stage cascaded amplifier with the following specifications:
Rin1 = 50 kΩ
Av1 (unloaded) = 50
Rth1 = 5 kΩ
Rin2 = 10 kΩ
Av2 (unloaded) = 40
Rth2 = 1.0 kΩ
Draw the amplifier model and compute the voltage across a 2.0 kΩ load.
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