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Multi-Stage Transistor Amplifiers
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If the power level of an amplifier reduces to half, the db gain will fall by___________?
Related MCQs
A gain of 1000 times in voltage is expressed by__________?
The upper or lower cut off frequency is also called__________frequency?
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 number of stages that can be directly coupled is limited because__________?
The bandwidth of a single stage amplifier is__________that of a multistage amplifier?
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?
In the initial stages of a multistage amplifier, we use__________?
A gain of 1,000,000 times in power is expressed by__________?
In transistor amplifiers, we use__________transformer for impedance matching?
If a three-stage amplifier has individual stage gains of 10 db, 5 db and 12 db, then total gain in db is__________?
Transformer coupling is generally employed when load resistance is__________?
__________coupling provides the maximum voltage gain?
In RC coupling, the value of coupling capacitor is about__________?
The best frequency response is of__________coupling?
In obtaining the frequency response curve of an amplifier, the__________?
In an RC coupling scheme, the coupling capacitor CC must be large enough__________?
When a multistage amplifier is to amplify d.c. signal, then one must use__________coupling?
In practice, voltage gain is expressed__________?
The final stage of a multistage amplifier uses__________?
RC coupling is not used to amplify extremely low frequencies because__________?
1 db corresponds to__________change in voltage or current level?
The total gain of a multistage amplifier is less than the product of the gains of individual stages due to__________?
A current amplification of 2000 is a gain of__________?
The purpose of RC or transformer coupling is to__________?
The value of emitter capacitor CE in a multistage amplifier is about__________?
RC coupling is generally confined to low power applications because of__________?
An amplifier receives 0.1 W of input signal and delivers 15 W of signal power. What is the power gain in db?
The gain of an amplifier is expressed in db because__________?
The frequency response of transformer coupling is__________?
1 db corresponds to__________change in power level?
The lower and upper cut off frequencies are also called__________frequencies?
The ear is not sensitive to__________?
Transformer coupling provides high efficiency because__________?
The noise factor of an ideal amplifier expressed in db is__________?
Transformer coupling is used for__________amplification?
An advantage of RC coupling scheme is the__________?
In an RC coupled amplifier, the voltage gain over mid-frequency range__________?
RC coupling is used for__________amplification?
A radio receiver has__________of amplification?
If the power level of an amplifier reduces to half, the db gain will fall by___________?
A. 5 db
B. 2 db
C. 10 db
D. 3 db
Correct Answer:
3 db
✔
Last Updated:
July 30, 2021