English Explanatory Dictionary

Johnson-Nyquist noise

English dictionary entry

Meanings

noun
  1. The electronic noise generated by the thermal agitation of the charge carriers (usually the electrons) inside an electrical conductor at equilibrium, which happens regardless of any applied voltage.

Word forms

Johnson-Nyquist noise

Etymology

Discovered and first measured by John B. Johnson at Bell Labs in 1926. His colleague Harry Nyquist provided an explanation of the results.

Synonyms

Johnson noise Nyquist noise thermal noise
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