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⚛️ Physics  ·  Semiconductor Electronics  ·  NEET & JEE

NOT gate produces output that is:

Answer: Inverted (complement) of input.

  • A Identical to the input signal with no change
  • B Inverted (complement) of input
  • C The logical AND of two separate input signals
  • D The logical OR of two separate input signals

Correct answer: B. Inverted (complement) of input

Explanation: NOT gate is an inverter: output = complement of input. If input is 1, output is 0 and vice versa.

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 →