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How do we compute the current gain of a simplified CB amplifier model using hybrid parameters?(a) -hfe / 1 + hfe(b) -hfe / 1 – hfe(c) hfe / 1 + hfe(d) hfe / 1 – hfeThis question was addressed to me in homework.Asked question is from Simplified Calculations for the CB Configuration in section Low Frequency Transistor Amplifier Circuit of Electronic Devices & Circuits

Answer»

The CORRECT option is (C) hfe / 1 + hfe

Best explanation: The current gain of a simplified common BASE (CB) amplifier can be expressed in terms of approximate HYBRID parameters. The current gain hfe is the forward transfer characteristics. The current gain of a common base amplifier is expressed as hfe / 1 + hfe.



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