What is the outcome of utilizing Voltage Series feedback also referred to as series-shunt feedback)__________?
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Answer: C. Increase in input impedance & decreases in output impedance
Explanation
Voltage series feedback samples the output voltage and combines it in series opposition with the input voltage. Adding a feedback signal in series with the input inherently increases the total input resistance of the amplifier. Shunt connection at the output terminal samples the voltage and effectively decreases the output resistance. Feedback topologies are categorized based on how they sample the output and mix signals at the input. Series input connections raise impedance levels because the feedback voltage subtracts directly from the source voltage. Shunt output connections lower impedance because the output acts more like an ideal voltage source.
Increasing both input and output impedances describes current-series feedback rather than voltage-series topologies. Decreasing both input and output impedances is characteristic of current-shunt feedback configurations instead. Decreasing input impedance and increasing output impedance represents the exact opposite behavior of voltage series feedback.
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