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What is the total voltage gain of a cascading transistor configuration if the gain of first stage is 48 and the gain of the second stage is 12?(a) 6.75(b) 6.55(c) 5.76(d) 5.65I have been asked this question during an internship interview.My question comes from The Cascode Transistor Configuration in portion Low Frequency Transistor Amplifier Circuit of Electronic Devices & Circuits |
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Answer» CORRECT OPTION is (c) 5.76 Explanation: The total gain of a CASCADING transistor CONFIGURATION can be CALCULATED by the formula given below. Where, AV = overall gain, AV1 = voltage gain of first stage and AV2 = voltage gain of second stage. AV = AV1 × AV2 = 4.8 × 1.2 = 5.76. |
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