Electronic Devices and Circuits — Summer 2024

Explain the formation of depletion region when p-type and n-type materials are combined.

Explain effect of temperature on various parameters of a transistor.

Draw and Explain Full wave bridge rectifier circuit.

Draw and explain V-I (voltage- current) characteristics of Zener diode.

What is DC load line? Explain with necessary diagram how it can be applied to find operating point in a given circuit.

Explain construction and working of N-channel MOSFET.

Explain Darlington pair connections of two transistors.

Describe JFET applications as constant current source.

Compare CE, CB and CC configurations of a transistor and their applications.

Justify the need of transistor biasing. Explain voltage divider bias of common emitter amplifier in brief.

Explain how transistor can be operated as a switch.

Draw and explain series negative clipper waveform with input and output waveforms.

Write a short note on Varactor diode.

Explain Principal of operation of Photodiode.

Derive and explain the relation between current gain α and β in a transistor.

Explain capacitive filter with Ripple Factor.

What is the application of positive feedback circuit?

Briefly explain about cooling system for turbo alternators.

Explain construction, operation and characteristic of P-channel Enhancement type MOSFET in detail.

Briefly explain turbine classification.

Compare FET with BJT.

Draw and explain class Bpush-pull amplifier.

Explain basic principle of a solar cell.

Draw Ebers-Moll model and π-model of a transistor.

Explain the working of a transformer coupled class Apower amplifier and show the efficiency of class Atransformer coupled amplifier is 50%.