thermal noise (Johnson–Nyquist noise)

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:physical_phenomenon
gptkbp:affects	signal-to-noise ratio
gptkbp:alsoKnownAs	gptkb:Johnson–Nyquist_noise gptkb:Johnson_noise
gptkbp:causedBy	thermal agitation of charge carriers
gptkbp:dependsOn	current frequency (within practical limits)
gptkbp:describedBy	gptkb:Nyquist_theorem
gptkbp:discoveredBy	gptkb:John_B._Johnson
gptkbp:existsIn	all temperatures above absolute zero
gptkbp:form	V_rms = sqrt(4kTRB)
gptkbp:frequencySpectrum	gptkb:white_noise
gptkbp:hasUnit	gptkb:watt volt
gptkbp:independenceDate	applied voltage
gptkbp:namedAfter	gptkb:John_B._Johnson gptkb:Harry_Nyquist
gptkbp:occurredIn	electrical conductors
gptkbp:proportion	gptkb:temperature resistance
gptkbp:relatedTo	gptkb:shot_noise electronics physics telecommunications flicker noise
gptkbp:relevantConstant	gptkb:Boltzmann_constant
gptkbp:symbol	B R T k
gptkbp:theorizedBy	gptkb:Harry_Nyquist
gptkbp:bfsParent	gptkb:Harry_Nyquist
gptkbp:bfsLayer	5
https://www.w3.org/2000/01/rdf-schema#label	thermal noise (Johnson–Nyquist noise)