Henry (unit): Difference between revisions
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imported>Paul Wormer (New page: {{subpages}} The '''henry''' (symbol '''H''') is the SI unit of inductance. The self- or mutual inductance of a closed loop is 1 henry if a current of 1 ampere...) |
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In [[physics]], in particular in [[electromagnetism]], the '''henry''' (symbol '''H''') is the [[SI|SI unit]] of [[inductance]]. The self- or mutual inductance of a closed loop is 1 henry if a current of 1 [[ampere (unit)|ampere]] gives rise to a [[magnetic flux]] of 1 [[weber (unit)|weber]]. | |||
:1 H = Wb/A = 1 V⋅s/A = 1 (J/C)⋅(s/A) = 1 J/A<sup>2</sup> = 1 N⋅m/A<sup>2</sup> = kg⋅m<sup>2</sup>/(s⋅A)<sup>2</sup> | :1 H = Wb/A = 1 V⋅s/A = 1 (J/C)⋅(s/A) = 1 J/A<sup>2</sup> = 1 N⋅m/A<sup>2</sup> = kg⋅m<sup>2</sup>/(s⋅A)<sup>2</sup> | ||
The henry was adopted in 1893 by the International Electrical Congress. | The henry was adopted in 1893 by the International Electrical Congress. | ||
Revision as of 12:10, 11 July 2008
In physics, in particular in electromagnetism, the henry (symbol H) is the SI unit of inductance. The self- or mutual inductance of a closed loop is 1 henry if a current of 1 ampere gives rise to a magnetic flux of 1 weber.
- 1 H = Wb/A = 1 V⋅s/A = 1 (J/C)⋅(s/A) = 1 J/A2 = 1 N⋅m/A2 = kg⋅m2/(s⋅A)2
The henry was adopted in 1893 by the International Electrical Congress.