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Q&A

Inductance vs frequency

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Suppose we have a sine signal applied to a inductive load. Is the inductance of the load changed if the frequency of the signal is changed?

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1 answer

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No. An inductance is an inductance.

One way to look at an inductance is as an impedance that is a function of frequency:

    Zind = ωL = 2πfL

Where Zind is the impedance magnitude of an inductance, ω and f the applied frequencies, and L the inductance. When ω is in radians/second, f in Hz, and L in Henrys, then Zind is in Ohms.

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