As shown in figures "A", "B", and "C" of the illustration, what is the purpose of the differential amplifier segment of the 741 operational amplifier? Illustration EL-0111

Correct Answer: Option D — detect and amplify the voltage difference between the inputs at pins 2 and 3

The differential amplifier stage of a 741 operational amplifier is designed to amplify the difference between the voltages applied to the inverting input (pin 2) and the non-inverting input (pin 3). This configuration provides high common-mode rejection, which is vital for accurate signal processing in noisy marine electrical environments.