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What is the value of current gain in the simplified CE hybrid model?

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What is the value of current gain in the simplified CE hybrid model?

(a) hfe

(b) -hfe

(c) hre

(d) –hre

The question was asked in an international level competition.

Query is from Simplified CE Hybrid Model topic in division Low Frequency Transistor Amplifier Circuit of Electronic Devices & Circuits

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The correct answer is (b) -hfe

The explanation is: The current gain of a common emitter (CE) amplifier can be expressed in terms of hybrid parameters in the simplified CE hybrid model. The current gain hfe is the forward transfer characteristics and is used to calculate the current gain in common emitter amplifiers.

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