Ohm's law for electrical conduction

E369671

Ohm's law for electrical conduction is a fundamental principle stating that the current through a conductor is directly proportional to the voltage across it and inversely proportional to its resistance.

All labels observed (2)

Label Occurrences
Ohm's law 4
Ohm's law for electrical conduction canonical 1

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Statements (49)

Predicate Object
instanceOf electrical law
empirical law
physical law
allowsCalculationOf electrical power using P = V I
appliesTo electrical conduction in conductors
linear resistive circuits
ohmic materials
assumes linear response of material
material properties are constant
temperature is constant
category linear relationship
combinedWith Joule’s law of heating
surface form: Joule's law
defines resistance as R = V / I
doesNotNecessarilyApplyTo non-ohmic materials
semiconductor diodes
superconductors
vacuum tubes
expressesProportionality current is directly proportional to voltage
current is inversely proportional to resistance
field electrical engineering
electricity
physics
implies V is proportional to I for constant resistance
mathematicalForm I = V / R
R = V / I
V = I R
namedAfter Georg Ohm
relatedConcept Kirchhoff's circuit laws
conductivity
power dissipation in resistors
resistivity
relatedLaw Ohm's law for magnetic circuits
relatesQuantity electric current
electric potential difference
electrical resistance
statedAs V = I R
symbolForCurrent I
symbolForResistance R
symbolForVoltage V
unitOfResistance ohm
usedFor analyzing DC circuits
calculating current from voltage and resistance
calculating resistance from voltage and current
calculating voltage from current and resistance
usedIn circuit design
electrical safety calculations
electronic device analysis
validInRegime low electric field strengths for ohmic materials
yearFormulated 1827

How these facts were elicited

Referenced by (5)

Full triples — surface form annotated when it differs from this entity's canonical label.

Fourier's law of heat conduction analogousTo Ohm's law for electrical conduction
Kirchhoff's circuit laws relatedTo Ohm's law for electrical conduction
this entity surface form: Ohm's law
Ampère (unit of electric current) isUsedIn Ohm's law for electrical conduction
subject surface form: ampere
this entity surface form: Ohm's law
Georg Ohm notableWork Ohm's law for electrical conduction
this entity surface form: Ohm's law
Georg Ohm hasEponym Ohm's law for electrical conduction
this entity surface form: Ohm's law