Define electron motion in a semiconductor.

Distinguish between intrinsic and extrinsic semiconductors.

What do you mean by doping?

How electron-hole pairs are created in a semiconductor material?

A diode is called as a unidirectional device. Explain.

What do you mean by leakage current in a diode?

Draw the input and output waveform of a full wave rectifier.

Distinguish between avalanche breakdown and Zener breakdown.

Discuss the biasing polarities in an NPN and PNP transistors

Explain the current flow in a NPN transistor.

What is the phase relationship between the AC input and output voltages in a common emitter amplifier? What is the reason for the phase reversal?

Explain the need for a feedback circuit in a transistor oscillator.

Give circuit symbol, logical operation, truth table, and Boolean expression of
i) AND gate
ii) OR gate
iii) NOT gate
iv) NAND gate
v) NOR gate and
vi) EX-OR gate.

State De Morgan's first and second theorems