**Full name:** exahenry

**Plural form:** exahenries

**Symbol:** EH

**Alternate spelling:** exahenrys

**Category type:** inductance

**Scale factor:** 1.0E+18

The SI derived unit for inductance is the henry.

1 henry is equal to 1.0E-18 exahenry.

Valid units must be of the **inductance** type.

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The SI prefix "exa" represents a factor of
10^{18}, or in exponential notation, 1E18.

So 1 exahenry = 10^{18} henries.

The definition of a henry is as follows:

The henry (symbol: H) is the SI unit of inductance. It 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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