Test Instrument Reference

Data record qty.impedance.unit

Verified 2026-10-27 Confidence: Medium

In the NIST Guide to the SI, the ohm, symbol Ω, is the SI coherent derived unit of electric resistance, expressed in other SI units as the volt per ampere; impedance, being likewise a ratio of voltage to current, is stated in the same unit.

Value: Ω

ProvenanceNIST SP 811 supports data record qty.impedance.unit, which is cited on the entry Impedance.SOURCENIST SP 811NIST SP 811Government work, clause Table 3DATA RECORDqty.impedance.unitqty.impedance.unitVerified 2026-10-27ENTRYImpedanceImpedanceNo revisions
Provenance. Where this record comes from and where it is used: the cited source, the record itself and the entry that cites it.
Provenance: the chain from source to entry.
StepItemDetail
SourceNIST SP 811Government work, clause Table 3
Data recordqty.impedance.unitVerified 2026-10-27
EntryImpedanceNo revisions
Subject
Impedance (Quantities, units and formulas)
Kind
Unit definition
Source
NIST SP 811, web page updated 2025-08-18 edition, clause Table 3, NIST Guide to the SI, Chapter 4: The Two Classes of SI Units and the SI Prefixes, NIST. Publisher page

History

Every recorded change to this data record, oldest first.
DateChange
2026-10-27created
2026-10-27review_status unreviewed -> software_reviewed

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"Data record qty.impedance.unit." Test Instrument Reference. 2026-10-27. https://www.testinstrumentreference.com/data/qty.impedance.unit/.