A. To pass d.c. between the stages
B. Not to attenuate the low frequencies
C. To dissipate high power
D. None of the above
Correct Answer: Not to attenuate the low frequencies ✔
Last Updated: July 30, 2021
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?
- If the power level of an amplifier reduces to half, the db gain will fall by__________?
- 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__________?
- 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?