Henry (unit of inductance) named after him
E666335
Henry (symbol H) is the SI derived unit of inductance, used to quantify the ability of an electrical conductor or circuit to induce an electromotive force when the current flowing through it changes.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T7462198 — 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: Henry (unit of inductance) named after him Context triple: [Joseph Henry, hasHonor, Henry (unit of inductance) named after him]
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A.
Ampère (unit of electric current)
The ampere is the International System of Units (SI) base unit that quantifies electric current.
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B.
Heaviside–Lorentz units
Heaviside–Lorentz units are a rationalized system of electromagnetic units commonly used in theoretical physics, especially in relativistic formulations of Maxwell’s equations and quantum field theory.
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C.
oersted (unit)
The oersted is a deprecated cgs unit of magnetic field strength, historically used to measure the intensity of magnetic fields.
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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.
Georg Ohm
Georg Ohm was a German physicist and mathematician best known for formulating Ohm’s law, which defines the relationship between voltage, current, and resistance in electrical circuits.
- 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: Henry (unit of inductance) named after him Target entity description: Henry (symbol H) is the SI derived unit of inductance, used to quantify the ability of an electrical conductor or circuit to induce an electromotive force when the current flowing through it changes.
-
A.
Ampère (unit of electric current)
The ampere is the International System of Units (SI) base unit that quantifies electric current.
-
B.
Heaviside–Lorentz units
Heaviside–Lorentz units are a rationalized system of electromagnetic units commonly used in theoretical physics, especially in relativistic formulations of Maxwell’s equations and quantum field theory.
-
C.
oersted (unit)
The oersted is a deprecated cgs unit of magnetic field strength, historically used to measure the intensity of magnetic fields.
-
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.
-
E.
Georg Ohm
Georg Ohm was a German physicist and mathematician best known for formulating Ohm’s law, which defines the relationship between voltage, current, and resistance in electrical circuits.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
SI derived unit
ⓘ
unit of inductance ⓘ |
| baseUnitAmpereExponent | -2 ⓘ |
| baseUnitKilogramExponent | 1 ⓘ |
| baseUnitMetreExponent | 2 ⓘ |
| baseUnitSecondExponent | -2 ⓘ |
| belongsToSystem | SI ⓘ |
| category | electromagnetism unit ⓘ |
| definedBy | induced electromotive force per rate of change of current ⓘ |
| definition |
An inductor has an inductance of one henry if an EMF of one volt is induced when the current through it changes at the rate of one ampere per second.
ⓘ
linked to:
Henry (unit of inductance) named after him
|
| dimension | M1 L2 T−2 I−2 ⓘ |
| equivalentTo |
ohm second
ⓘ
volt second per ampere ⓘ weber per ampere ⓘ |
| hasAbbreviation | H ⓘ |
| hasQuantitySymbol | L ⓘ |
| introducedInCentury | 19th century ⓘ |
| isCoherentWith | SI base units ⓘ |
| isStandardUnitFor | inductance in SI ⓘ |
| namedAfter | Joseph Henry ⓘ |
| namedAfterGivenName | Joseph ⓘ |
| namedAfterOccupation | American scientist ⓘ |
| namedAfterSurname | Henry ⓘ |
| namedIn | honour of Joseph Henry ⓘ |
| partOf | International System of Units ⓘ |
| physicalQuantityType | electromagnetic inductance ⓘ |
| quantityMeasured | inductance ⓘ |
| relatedConcept |
mutual inductance
ⓘ
self-inductance ⓘ |
| relatedLaw | Faraday's law of induction ⓘ |
| relatedToQuantity | magnetic flux linkage ⓘ |
| relatedUnit | weber per ampere ⓘ |
| SIBaseUnitExpression | kg m2 s−2 A−2 ⓘ |
| SIUnitClass | coherent derived unit ⓘ |
| SIUnitMultiple |
kilohenry
ⓘ
microhenry ⓘ millihenry ⓘ nanohenry ⓘ |
| symbol | H ⓘ |
| unitSystem | metric system ⓘ |
| usedIn |
electrical circuit analysis
ⓘ
inductor specifications ⓘ transformer design ⓘ |
| usedInField |
electrical engineering
ⓘ
physics ⓘ |
| usedToQuantify | ability of a conductor or circuit to induce EMF when current changes ⓘ |
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: Henry (unit of inductance) named after him Description of subject: Henry (symbol H) is the SI derived unit of inductance, used to quantify the ability of an electrical conductor or circuit to induce an electromotive force when the current flowing through it changes.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
henry (unit)
→
definition
→
An inductor has an inductance of one henry if an EMF of one volt is induced when the current through it changes at the rate of one ampere per second.
ⓘ
subject linked to:
Henry (unit of inductance) named after him
linked to: Henry (unit of inductance) named after him