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SubjectsGeneral SciencePhysicsChapter 3 — Electricity & Magnetism3.4 Semiconductors & Logic Gates

Topic 3.4 · General Science · Electricity & Magnetism

Semiconductors & Logic Gates

Semiconductors & Logic Gates is studied as part of "Electricity & Magnetism" (Physics) in General Science. Electric circuits, magnetism, electromagnetic induction and semiconductor basics power modern technology and are frequent exam topics.

In the examination context, semiconductors & logic gates carries conceptual questions that test both factual recall and analytical understanding. Revise this topic in sequence with the rest of the chapter so that chronological and thematic links are clear.

Important Facts

p-n junction
Basis of the diode
SI unit of current
Ampere
Ohm's law
V = IR
Transformer
Works on electromagnetic induction

Key Points

  • SI unit of current — Ampere
  • Ohm's law — V = IR
  • Transformer — Works on electromagnetic induction
  • p-n junction — Basis of the diode

Important Names

André-Marie AmpèreGeorg OhmMichael Faraday

Important Dates

1820Oersted discovered electromagnetism
Exam-Oriented Notes
  • »Current is measured by ammeter in series; voltage by voltmeter in parallel. Resistance = V/I.

Related topics

3.1 Electric Current & Circuits3.2 Magnetism3.3 Electromagnetic Induction
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