Engine 2014: Electricity

1. A The comparator receives two inputs (one from the voltage sensor and the other from the amplifier) and delivers one output (to the set point voltage potentiometer).
2. B The comparator receives two inputs (one from the voltage sensor and the other from the set point voltage potentiometer) and delivers one output (to the amplifier).
3. C The comparator receives one input (from the voltage sensor) and delivers two outputs (one to the amplifier and the other to the set point voltage potentiometer).
4. D The comparator receives one input (from the setpoint voltage potentiometer) and delivers two outputs (one to the amplifier and the other to the voltage sensor).

Tip: press A-D to answer