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The output of a microphone is rated at -52 db. The reference level is 1V under specified conditions. What is the output voltage of this microphone under the same sound conditions?

/ Electrical Engineering Mcqs, Multi-Stage Transistor Amplifiers / By
The output of a microphone is rated at -52 db. The reference level is 1V under specified conditions. What is the output voltage of this microphone under the same sound conditions?

A. 5 mV
B. 2 mV
C. 8 mV
D. 5 mV