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What is the value of input resistance in the simplified CE hybrid model?

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What is the value of input resistance in the simplified CE hybrid model?

(a) hoe

(b) hib

(c) hic

(d) hie

This question was posed to me in an interview for internship.

My question comes from Simplified CE Hybrid Model in portion Low Frequency Transistor Amplifier Circuit of Electronic Devices & Circuits

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The correct choice is (d) hie

To explain: The input resistance of a common emitter (CE) amplifier can be expressed in terms of hybrid parameters in the simplified CE hybrid model. The input resistance is universally expressed as hie. This is also the same for approximate as well as exact hybrid models.

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