If the power level of an amplifier reduces to half, the db gain will fall by___________?

A gain of 1000 times in voltage is expressed by_______________?

A. 60 db

B. 30 db

C. 120 db

D. 600 db

The upper or lower cut off frequency is also called______________frequency?

A. Resonant

B. Sideband

C. 3 db

D. None of the above

The power output of an audio system is 18 W. For a person to notice an increase in the output (loudness or sound intensity) of the system, what must the output power be increased to ?

A. 2 W

B. 6 W

C. 68 W

D. None of the above

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

The bandwidth of a single stage amplifier is_____________that of a multistage amplifier?

A. More than

B. The same as

C. Less than

D. Data insufficient