Semiconductor Electronics: Materials, Devices and Simple Circuits
This worksheet covers the fundamental concepts of semiconductors, including materials, energy bands, doping, p-n junctions, and rectifiers. Total: 40 marks.
Section A: Fill in the Blanks [20 Marks]
Complete the following statements with the most appropriate word or phrase.
Devices in which a controlled flow of electrons can be obtained are the basic building blocks of all ________ circuits.
On the basis of electrical resistivity, solids are broadly classified into metals, insulators, and ________.
The energy band which includes the energy levels of the valence electrons is called the ________.
The gap between the top of the valence band and the bottom of the conduction band is called the energy ________.
In an intrinsic semiconductor, the number of free electrons is ________ to the number of holes.
Section B: Multiple Choice Questions [20 Marks]
Choose the single correct answer for each question.