MCQ Practice Question Measurements & InstrumentationSignal Conditioning A CMRR of 10000 expressed in decibels is? A40 dB B60 dB C80 dB D100 dB Show AnswerHide AnswerReport an error Correct Answer: C. 80 dB Explanation: CMRR(dB)=20log10(10000)=20×4=80 dB.Reference: Standard measurements and instrumentation: signal conditioning