耦合常數coupling factorКонстанта взаимодействияconstante de couplage結合定数Çiftlenim sabitifattore di accoppiamentoconstante de acoplamientostała sprzężeniaConstantă de cuplaj
For inductive coupling between two inductive elements, \(k = \frac{\left | L_{mn} \right |}{\sqrt{L_m L_n}}\), where \(L_m\) and \(L_n\) are their self inductances, and \(L_{mn}\) is their mutual inductance.
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"Coupling Factor" is the ratio of an electromagnetic quantity, usually voltage or current, appearing at a specified location of a given circuit to the corresponding quantity at a specified location in the circuit from which energy is transferred by coupling.