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What is the approximate hybrid parameter current gain of a CC amplifier?

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What is the approximate hybrid parameter current gain of a CC amplifier?

(a) 1 + hoe

(b) 1 – hoe

(c) 1 + hfe

(d) 1 – hfe

This question was posed to me during an online exam.

Question is from Approximate Hybrid Model and its use in CE, CB, CC topic in chapter Small-Signal Low-Frequency AC models of Transistors of Electronic Devices & Circuits

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The correct choice is (c) 1 + hfe

Best explanation: The current gain of a common collector (CC) 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 collector amplifier is expressed as 1 + hfe.

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