Henry (inductance)
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The henry (symbol H) is the SI unit of inductance. If the rate of change of current in a circuit is one ampere per second and the resulting electromotive force is one volt, then the inductance of the circuit is one henry.
The henry has dimensions V·A-1·s = m²·kg·s-2·A-2 in SI units.
The unit is named after the American scientist Joseph Henry.
SI electricity units
| SI Base unit | |||
|---|---|---|---|
| Name | Symbol | Quantity | Notes |
| ampere | A | Current | |
| SI Derived units | |||
| Name | Symbol | Quantity | Notes |
| volt | V | Potential difference | |
| ohm | Ω | Resistance, Impedance, Reactance | |
| farad | F | Capacitance | |
| henry | H | Inductance | |
| siemens | S | Conductance, Admittance, Susceptance | =Ω−1 |
| coulomb | C | Electric charge | |
| ohm · metre | Ω · m | Resistivity | |
| siemens per metre | S / m | Conductivity | |
| henry per metre | H /m | Permeability | μ |
| farad per metre | F / m | Permittivity | ε |
| reciprocal farad | F−1 | Elastance | =F−1 |
de:Henry (Einheit) id:Henry (induktansi) fi:Henry fr:Henry nl:Henry
