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What is the total voltage gain of a cascading transistor configuration if input of first stage is 50V and the output of the second stage is 100V?(a) 20(b) 0.2(c) 2.5(d) 2The question was asked during an internship interview.My question is based upon The Cascode Transistor Configuration in chapter Low Frequency Transistor Amplifier Circuit of Electronic Devices & Circuits

Answer»

Correct option is (d) 2

Best EXPLANATION: The total gain of a cascading transistor CONFIGURATION is the ration of the output of SECOND stage amplifier to the input of first stage amplifier. Where, Voutput = 100V and Vinput = 50V.

AV = Voutput / Vinput = 100V / 50V = 2.



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