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Multi-Stage Transistor Amplifiers

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 ?

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 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 ? Read More »

Electrical Engineering Mcqs, Multi-Stage Transistor Amplifiers

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

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 number of stages that can be directly coupled is limited because___________? Read More »

Electrical Engineering Mcqs, Multi-Stage Transistor Amplifiers

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?

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 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? Read More »

Electrical Engineering Mcqs, Multi-Stage Transistor Amplifiers