Topic: Analog Circuits
The voltage V in the circuit given below is :
- A. Series-Series
- B. Shunt-Series
- C. Series-Shunt
- D. Shunt-Shunt
Answer: C. Series-Shunt
Explanation: The feedback network senses the output voltage $V_o$ (taken from the emitter node in parallel/shunt) and feeds a proportion of it back to the inverting terminal of the OPAMP. Since the input signal is applied to the non-inverting terminal, the feedback effectively subtracts from the input in series (mixing voltages in the input loop). Therefore, this topology represents a Series-Shunt (voltage-series) feedback amplifier.