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| '''[[Inductance]]''' is a measure of the amount of [[magnetic flux]] produced for a given [[electric current]]. The term was coined by [[Oliver Heaviside]] in February [[1886]]. The [[SI]] unit of inductance is the [[Henry (unit)|henry]] (symbol: H), in honour of [[Joseph Henry]]. The symbol ''L'' is used for inductance, possibly in honour of the physicist [[Heinrich Lenz]].
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| The inductance has the following relationship:
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| :<math>L= \frac{\Phi}{i}</math>
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| where; ''L'' is the inductance in [[Henry (unit)|henrys]], ''i'' is the current in [[ampere]]s, ''Φ'' is the magnetic flux in [[Weber (unit)|weber]]s. Strictly speaking, the quantity just defined is called ''self-inductance'', because the magnetic field is created solely by the conductor that carries the current.
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| When a conductor is coiled upon itself N number of times around the same axis (forming a [[solenoid]]), the current required to produce a given amount of flux is reduced by a factor of N compared to a single turn of wire. Thus, the inductance of a coil of wire of N turns is given by:
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| :<math>L= \frac{\lambda}{i} = N\frac{\Phi}{i}</math>
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| where, <math>\lambda</math> is the total 'flux linkage'.
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| [[zh:Portal:電子學/特色条目/9]]
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Latest revision as of 18:10, 31 July 2014
Nice to satisfy you, I am Marvella Shryock. Managing people is what I do and the wage has been truly fulfilling. South Dakota is her birth place but she requirements to transfer simply because of her family. Body developing is what my family members and I appreciate.
My weblog ... http://Youulike.com