Electron Devices and Circuits: Unit V: (a) Feedback Amplifiers
University Questions with Answers (Long Answered Questions)
Feedback Amplifiers | Electron Devices and Circuits
Electron Devices and Circuits: Unit V: (a) Feedback Amplifiers : University Questions with Answers (Long Answered Questions)
University Questions with Answers (Long Answered Questions)
Dec.-14
Q.8
Determine Rif, Rof, Av and Avf for the following :
i)
Voltage shunt feedback amplifier ii) Current series feedback amplifier.
[Section
9.12] [16]
May-15
Q.9
Draw circuit of CE amplifier with current series feedback and obtain the
expression for feedback ratio, uoltage gain, input and output resistances.
[Section
9.12.2] (16)
Dec.-15
Q.10
Sketch the circuit diagram of a two-stage capacitor coupled BJT amplifier that
uses series voltage negative feedback. Briefly explain how
the feed back operates. [Section 9.12.1.1] (16)
May-17
Q.11
With a neat block diagram, explain the operation of following feedback
amplifiers.
i)
Voltage series feedback amplifier
ii)
Current shunt feedback amplifier
[Sections
9.5, 9.9] [13]
Dec.-17
Q.12 When a portion of the output signal is fed to input, as you are aware, feedback is generated. Distinguish between negative feedback and positive feedback and elaborate on their individual advantages. How different parameters of an amplifier (say) will be affected by these two types of feedback ? (Section 9.1) [15]
Electron Devices and Circuits: Unit V: (a) Feedback Amplifiers : Tag: : Feedback Amplifiers | Electron Devices and Circuits - University Questions with Answers (Long Answered Questions)
Electron Devices and Circuits: Unit V: (a) Feedback Amplifiers
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