吉亨 (GH) 单位定义
The gigahenry is a multiple of the unit henry (H) for inductance. The International System of Units (SI) defines the prefix giga (G) as a factor of 109 or 1000000000. Per this definition, one gigahenry is 109 henry. The gigahenry is represented by the symbol GH.
概述
The inductance of an electric circuit is one henry when an electric current that is changing at one ampere (A) per second (s) results in an electromotive force of one volt (V) across the inductor: V(t) = L dI⁄dt, where V(t) denotes the resulting voltage across the circuit, I(t) is the current through the circuit, and L is the inductance of the circuit.
The henry is a derived unit based on four of the seven base units of the International System of Units: kilogram (kg), meter (m), second (s), and ampere (A). Expressed in combinations of SI units, the henry is: H = kg∙m2⁄s2∙A2 = N∙m⁄A2 = kg∙m2⁄C2 = J⁄A2 = T∙m2⁄A = Wb⁄A = V∙s⁄A = s2⁄F = Ω⁄Hz = Ω∙s. Where: H = henry, kg = kilogram, m = meter, s = second, A = ampere, N = newton, C = coulomb, J = joule, T = tesla, Wb = weber, V = volt, F = farad, Ω = ohm, Hz = hertz.
利用
国际单位制 (SI) 规定以首字母大写的人命名的单位符号,而该名称在句子文本中不大写,除非该位置的任何单词大写,例如 at使用标题大小写的句子或材料的开头。美国国家标准与技术研究所建议用英语写作的用户使用复数作为 henries。
应用
The inductance of a coil depends on its size, the number of turns, and the permeability of the material within and surrounding the coil. Formulas can be used to calculate the inductance of many common arrangements of conductors, such as parallel wires, or a solenoid. A small air-core coil used for broadcast AM radio tuning might have an inductance of a few tens of microhenries (μH). A large motor winding with many turns around an iron core may have an inductance of hundreds of henries. The physical size of an inductance is also related to its current carrying and voltage withstand ratings.
其他电感单位定义
转换为另一个电感单元
相关定义
免责声明
尽管已尽一切努力测试此单位转换器,但我们不对因使用任何转换器工具而引起或与之相关的任何特殊、偶然、间接或后果性损害或金钱损失负责和来自本网站的信息。本单位转换器作为一项服务提供给您,请自行承担使用风险。不要对因单位转换不准确而导致生命、金钱、财产等损失的任何事物进行计算。
如需更多信息:请参阅我们的完整免责声明。
来源
“Henry (Unit).” Wikipedia, Wikimedia Foundation, 23 Jan. 2021, en.wikipedia.org/wiki/Henry_(unit).