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A swamped amplifier uses________

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A swamped amplifier uses________

(a) Base bias

(b) Positive feedback

(c) Negative feedback

(d) A grounded emitter

I had been asked this question at a job interview.

Origin of the question is Voltage Amplifiers topic in portion Differential and Multistage Amplifiers of Electronic Devices & Circuits

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The correct option is (c) Negative feedback

To explain I would say: A swamped amplifier reduces variations in voltage gain by increasing the ac resistance of the emitter circuit to get a stable voltage gain. As it involves reduction in gain, it is a negative feedback.

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