How to Calculate Coupling Coefficient Without Mutual Inductance?

AI Thread Summary
To calculate the coupling coefficient without mutual inductance, one must understand the relationship defined by the equation M = k*sqrt(L1*L2), where M is mutual inductance, k is the coupling coefficient, and L1 and L2 are the inductances of the coils. The user acknowledges knowing the inductances but lacks the mutual inductance value needed for direct calculation. An alternative approach discussed involves using mutual impedance, but the user is uncertain about how to calculate this parameter. Ultimately, further information or methods to determine mutual impedance is necessary for calculating the coupling coefficient accurately. Understanding these relationships is crucial for solving the problem effectively.
seanhbailey
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Homework Statement



I am trying to find the mtuual inductance between two p-core inductors (they share the same core) but I am not sure how the coupling coefficient would be calculated. I know the inductance of both coils. What else would I have to know in order to calculate the coupling coefficient if I am not given the mutual inductance?

Homework Equations



M = k*sqrt(L1*L2)

where M is mutual inductance, k is coupling coefficient, L1 and L2 are inductances of first and second coils respectively.

The Attempt at a Solution



Dunno.
 
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Ok, so I figured out that the coupling coefficient is equal to mutual impedance divided by the square root of the product of the impedances of each inductor. I am not sure if this helps, as I do not know how to calculate mutual impedance.
 

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