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chemical engineering process control and instrumentation
1. Conversion formula for converting amplitude ratio (AR) into decibels is
(A): Decibel = 20 log10 (AR)
(B): Decibel = 20 log10 (AR)0.5
(C): Decibel = 20 loge (AR)
(D): Decibel = 20 loge (AR)0.5
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