MDCAT Physics MCQ #1244

MDCAT Physics MCQ #1244

1. Question 1

   Q1. The output of an operational amplifier is

   • A) proportional to the difference between the two input voltages
   • B) proportional to the sum of the two input voltages
   • C) proportional to the product of the two input voltages
   • D) independent of the input voltages

   Answer: proportional to the difference between the two input voltages

   Explanation: Op-amp output is proportional to the differential input voltage, not sum or product.