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How is the input impedance of a high frequency response of emitter follower amplifier?

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in Electronic Devices & Circuits by (272k points)
How is the input impedance of a high frequency response of emitter follower amplifier?

(a) Irrelevant

(b) Moderate

(c) Low

(d) High

This question was posed to me by my college professor while I was bunking the class.

Question is taken from High-Frequency Response of the Emitter Followers topic in portion Frequency Response of Electronic Devices & Circuits

1 Answer

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Best answer
Right choice is (d) High

To elaborate: The construction of a high frequency response of emitter follower circuit is approximately similar to a normal amplifier. One of the most important differentiating feature of a high frequency response of emitter follower circuit is its high input impedance.

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