Ampère's force law
E158699
Ampère's force law is a fundamental principle in electromagnetism that quantifies the mechanical force between electric currents in conductors.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ampère's force law canonical | 2 |
| Ampère's law | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1380610 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ampère's force law Context triple: [André-Marie Ampère, notableWork, Ampère's force law]
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A.
Lorentz force
The Lorentz force is the fundamental force experienced by a charged particle moving in electric and magnetic fields, forming the basis of classical electromagnetism.
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B.
Ampère–Maxwell law
The Ampère–Maxwell law is one of Maxwell’s equations that relates magnetic fields to electric currents and changing electric fields, thereby introducing the concept of displacement current and enabling the prediction of electromagnetic waves.
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C.
Maxwell's equations
Maxwell's equations are the fundamental set of four equations in classical electromagnetism that describe how electric and magnetic fields are generated and interact with charges and currents.
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D.
Faraday's law of induction
Faraday's law of induction is a fundamental principle of electromagnetism that relates changing magnetic flux through a circuit to the induced electromotive force (voltage) in that circuit.
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E.
Gauss’s law
Gauss’s law is a fundamental principle of electromagnetism that relates the electric flux through a closed surface to the electric charge enclosed within that surface.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Ampère's force law Target entity description: Ampère's force law is a fundamental principle in electromagnetism that quantifies the mechanical force between electric currents in conductors.
-
A.
Lorentz force
The Lorentz force is the fundamental force experienced by a charged particle moving in electric and magnetic fields, forming the basis of classical electromagnetism.
-
B.
Ampère–Maxwell law
The Ampère–Maxwell law is one of Maxwell’s equations that relates magnetic fields to electric currents and changing electric fields, thereby introducing the concept of displacement current and enabling the prediction of electromagnetic waves.
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C.
Coulomb's law
Coulomb's law is a fundamental principle of electrostatics that quantifies the electric force between two point charges as being proportional to the product of their charges and inversely proportional to the square of the distance between them.
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D.
Maxwell's equations
Maxwell's equations are the fundamental set of four equations in classical electromagnetism that describe how electric and magnetic fields are generated and interact with charges and currents.
-
E.
Faraday's law of induction
Faraday's law of induction is a fundamental principle of electromagnetism that relates changing magnetic flux through a circuit to the induced electromotive force (voltage) in that circuit.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
classical physics law
ⓘ
law of electromagnetism ⓘ physical law ⓘ |
| appliesTo |
current-carrying wires
ⓘ
steady electric currents ⓘ |
| approximationOf | magnetic interaction between moving charges ⓘ |
| assumes |
long straight parallel conductors
ⓘ
quasi-static conditions ⓘ |
| category | magnetic force law ⓘ |
| compatibleWith | Maxwell's equations ⓘ |
| conceptualBasisFor | electromagnetic unit of current ⓘ |
| dependsOn |
distance between conductors
ⓘ
permeability of free space ⓘ product of the currents ⓘ |
| describes |
force between electric currents
ⓘ
mechanical force between current-carrying conductors ⓘ |
| domain | macroscopic conductors ⓘ |
| expresses | force per unit length between parallel currents ⓘ |
| field | electromagnetism ⓘ |
| formulatedBy | André-Marie Ampère ⓘ |
| generalizedBy |
Lorentz force
ⓘ
surface form:
Lorentz force law
|
| hasConsequence |
currents in parallel power lines exert forces on each other
ⓘ
design constraints in high-current busbars ⓘ |
| hasUnit |
ampere for current
ⓘ
meter for length ⓘ newton for force ⓘ |
| historicalPeriod | 19th century ⓘ |
| involves |
direction of current
ⓘ
separation vector between conductors ⓘ vector nature of force ⓘ |
| isPartOf |
classical electrodynamics
ⓘ
magnetostatics ⓘ |
| languageOfOriginalPublication | French ⓘ |
| mathematicalForm | F∝I₁I₂ℓ∕r ⓘ |
| namedAfter | André-Marie Ampère ⓘ |
| predicts |
attraction between parallel currents in the same direction
ⓘ
repulsion between parallel currents in opposite directions ⓘ |
| relatedTo |
Ampère–Maxwell law
ⓘ
surface form:
Ampère's circuital law
Biot–Savart law ⓘ |
| relatesQuantity |
electric current
ⓘ
magnetic interaction ⓘ mechanical force ⓘ |
| requires | closed electric circuits ⓘ |
| standardFormSI | F∕ℓ = μ₀ I₁ I₂ ∕ (2π r) ⓘ |
| taughtIn | undergraduate electromagnetism courses ⓘ |
| usedFor | definition of the ampere in older SI system ⓘ |
| validInLimit | non-relativistic regime ⓘ |
| yearProposed | 1820s ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Ampère's force law Description of subject: Ampère's force law is a fundamental principle in electromagnetism that quantifies the mechanical force between electric currents in conductors.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ampère's law