Electronics

POINTS TO REMEMBER

Electronics is a field of pure and applied science dealing with the design and application of electronic devices.

Substances whose conductivity lies in between that of conductors and insulators are called semiconductors.

Ex: Silicon and Germanium.

When an electron is removed from a covalent bond, it leaves a vacancy, equivalent to positive charge. An electron from a neighbouring atom can drop into this vacancy, leaving the neighbour with a vacancy. Such a vacancy is usually called a hole and it is considered as an apparent charge carrier.

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