MCQ Practice Question Electronic Devices & CircuitsDifferential Amplifiers The CMRR of 10000 expressed in decibels is approximately? A20 dB B40 dB C80 dB D100 dB Show AnswerHide AnswerReport an error Correct Answer: C. 80 dB Explanation: CMRR(dB)=20 log10(10000)=20×4=80 dB.Reference: Standard analog electronics: CMRR in decibels