Henry (unit)

Henry
An inductor composed of an enameled wire wound around a magnetic core used to confine and guide the induced magnetic field.
General information
Unit systemSI
Unit ofinductance
SymbolH
Named afterJoseph Henry
Conversions
1 H in ...... is equal to ...
   SI base units   1 kg⋅m2⋅s−2⋅A−2

The henry (symbol: H) is the unit of electrical inductance in the International System of Units (SI), defined as 1 kg⋅m2⋅s−2⋅A−2. If a current of 1 ampere flowing through a coil produces flux linkage of 1 weber turn, that coil has a self-inductance of 1 henry.‌ The unit is named after Joseph Henry (1797–1878), the American scientist who discovered electromagnetic induction independently of and at about the same time as Michael Faraday (1791–1867) in England.

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