EC8353 Question Bank Electron Devices and Circuits
EC8353 Question Bank Electron Devices and Circuits Regulation 2017 Anna University free download. Electron Devices and Circuits Question Bank EC8353 pdf free download.
Sample EC8353 Question Bank Electron Devices and Circuits:
UNIT 3 EC8353 Question Bank Electron Devices and Circuits
1.Derive the h-parameters for CC amplifier. Question Paper
2.A common source FET amplifier uses load resistance Rd=100kΩ and an unbypassed resistor Rs in the source circuit.
The FET has drain resistance Rd=200KΩ nad μ=20.compute the voltage gain and output impedance Ro, for Rs=10KΩ. EC8353 Question Bank Electron Devices and Circuits
3.Draw the small signal equivalent circuit of FET amplifier in CS connection and derive the equations for voltage gain,
input impedance and output impedance.
4.Using the hybrid equivalent model, analyze and deduce the expression for the parameters using the circuit sketch. Question Paper
what is the significance of this approach
5. For a CB amplifier driven by a voltage source of internal resistance Rs = 1200 Ω, the load impedance is a resistor
RL= 1000Ω. The h-parameters are hib= 22Ω, hrb =3 x 10-4 ,hfb= -0.98 and hob= 0.5 μA/V. Compute the current gain
Ai, input impedance Ri, voltage gain Av, overall current gain Ais, overall voltage gain Avs, and output impedance Zo. EC8353 Question Bank Electron Devices and Circuits
Unit 4 EC8353 Question Bank Electron Devices and Circuits
1.Derive the equation for differential mode gain and common mode gain of a differential amplifier
2.Draw the single tuned amplifier and explain the frequency response
3.Explain in detail classification of power amplifier. Question Paper
4.With the neat diagram explain the class A, class B and class AB amplifier and derive its efficiency.
5.explain in detail about cascaded amplifiers
Unit 5 EC8353 Question Bank Electron Devices and Circuits
1.Draw the block diagram of voltage series feedback amplifier and derive the equation for input impedance output
impedance and the voltage gain. Calculate the voltage gain ,input and output resistance of a voltage series feedback
amplifier having AV=300,Ri=1.5k Ω ,Ro=50k Ω and β=1/15 EC8353 Question Bank Electron Devices and Circuits
2.Discuss the various topologies of feedback amplifier
3.Draw the circuit diagram and explain the principle of operation of the following oscillators: i)RC phase shift Question Paper
oscillator(8) ii) Any one LC oscillator
4.Explain the effects of negative feedback in amplifiers
5.Draw the circuit of Hartley oscillator and explain its working. Derive the expressions for frequency oscillation and
condition for starting of oscillation. EC8353 Question Bank Electron Devices and Circuits
| Subject name | Electron Devices and Circuits |
| Semester | 3 |
| Subject Code | EC8353 |
| Regulation | 2017 regulation |
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EC8353 Syllabus Electron Devices and Circuits
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