1 db corresponds to_____________change in power level?

Related Mcqs:

1 db corresponds to_____________change in voltage or current level?

A. 40% B. 80% C. 20% D. 25%...

RC coupling is not used to amplify extremely low frequencies because____________?

A. There is considerable power loss B. There is hum in the output C. Electrical size of coupling capacitor becomes very large D. None of the above...

The final stage of a multistage amplifier uses______________?

A. RC coupling B. Transformer coupling C. Direct coupling D. Impedance coupling...

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...

The number of stages that can be directly coupled is limited because___________?

A. Changes in temperature cause thermal instability B. Circuit becomes heavy and costly C. It becomes difficult to bias the circuit D. None of the above...