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Home Fundamentals Capacitance and Inductance Inductance  
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InductanceAuthor: J.B. Hoag
The inductance of a coil is measured in henries. It depends on the number of turns, the crosssectional area, and the material (air or iron) inside the coil. A straight wire also has a small amount of inductance. The formulas for series and parallel combinations of inductances are the same as for resistances, provided the magnetic fields of the various coils do not interact with each other.


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