Zaymiey

⚛️ Physics  ·  Semiconductor Electronics  ·  NEET & JEE

In common emitter configuration, output is taken from:

Answer: Collector.

  • A Emitter
  • B Base
  • C Collector
  • D Gate

Correct answer: C. Collector

Explanation: In common emitter (CE) configuration, input at base, common emitter, output at collector. Most used configuration.

Conductorconduction bandvalence bandbands overlapSemiconductorconduction bandvalence bandsmall gap (~1 eV)Insulatorconduction bandvalence bandlarge gap(> 3 eV)

Conductors have overlapping bands, semiconductors have a small energy gap that can be bridged by heat or doping, and insulators have a large gap that blocks conduction.

Concept context

Band theory, p-n junction, diodes, transistors, logic gates, and integrated circuits.

Read the full Semiconductor Electronics notes →