engineering physics MCQ #1861

engineering physics MCQ #1861

1. Question 1

   Q1. The common-mode rejection ratio (CMRR) of a differential amplifier is

   • A) the ratio of differential gain to common-mode gain
   • B) the ratio of common-mode gain to differential gain
   • C) the sum of differential and common-mode gains
   • D) the difference of differential and common-mode gains

   Answer: the ratio of differential gain to common-mode gain

   Explanation: CMRR = Ad / Ac, where Ad is differential gain and Ac is common-mode gain.