Description
Syllabus Covered
CBSE Class 12 Physics Notes of Chapter Chapter 14
Semiconductors
Energy bands in conductors, semiconductors and insulators (qualitative ideas only)
Semiconductor diode – I-V characteristics in forward and reverse bias, diode as a rectifier;
Special purpose p-n junction diodes: LED, photodiode, solar cell and Zener diode and their characteristics, zener diode as a voltage regulator.
Junction transistor, transistor action, characteristics of a transistor and transistor as an amplifier (common emitter configuration), basic idea of analog and digital signals, Logic gates (OR, AND, NOT, NAND and NOR).
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