The gain of an amplifier is expressed in db because ___________
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Electrical Engineering · all questionsMultistage Transistor Amplifiers
Multistage Transistor Amplifiers
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RC coupling is not used to amplify extremely low frequencies because
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A current amplification of 2000 is a gain of ___________
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If the power level of an amplifier reduces to half, the db gain will fall by .
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The number of stages that can be directly coupled is limited because
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In the initial stages of a multistage amplifier, we use ___________
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A radio receiver has ___________ of amplification
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RC coupling is used for ___________ amplification
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Transformer coupling is used for ___________ amplification
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The lower and upper cut off frequencies are also called ___________ frequencies
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The upper or lower cut off frequency is also called ___________ frequency
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The best frequency response is of ___________ coupling
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1 db corresponds to ___________ change in voltage or current level
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In an RC coupled amplifier, the voltage gain over mid-frequency range ___________
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In an RC coupling scheme, the coupling capacitor CC must be large enough ___________
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An advantage of RC coupling scheme is the ___________
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When a multistage amplifier is to amplify d.c. signal, then one must use coupling
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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 ?
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A gain of 1,000,000 times in power is expressed by ___________
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A gain of 1000 times in voltage is expressed by ___________
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