25 MOST IMPORTANT QUESTION AND ANSWER FOR CHSE 12TH PHYSICS CHAPTER- SEMICONDUCTOR ELECTRONICS
Weightage 7 Marks
Energy bands in conductors, semiconductors and insulators (qualitative idea only), p-type, ntype semiconductors, semiconductor diode, V-I characteristics in forward and reverse bias, diode as a half and full wave rectifier (centre tap), efficiency (no derivation). 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 transistor, transistor as an amplifier (CE configuration), basic idea of analog and digital signals, Logic gates (OR, AND, NOT, NAND, and NOR)
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Chapter wise Extra Q & A Sets (Physics, Class 12) |
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Electric Charges and Fields |
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Electrostatic Potential and Capacitance |
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Current Electricity |
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Moving Charges and Magnetism |
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Magnetism and Matter |
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Electromagnetic Induction |
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Alternating Current (AC) |
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Electromagnetic Waves |
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Ray Optics and Optical Instruments |
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Wave Optics |
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Dual Nature of Radiation and Matter |
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Atoms |
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Nuclei |
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Semiconductor Electronics: Materials, Devices and Simple Circuits |
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Communication System |
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