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Restoring force between two noncoaxial circular coils

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4 Author(s)
Ki-Bong Kim ; Electric Drives Div., SamSung Electro-Mech. Co., Suwon City, South Korea ; Levi, E. ; Zabar, Z. ; Birenbaum, L.

Considered here are the forces between two current-carrying circular coils, one of which, the primary coil, has a larger diameter than the other, the secondary. In the case in which the secondary coil's central axis does not coincide with that of the primary, there exists a transverse force which we call the restoring force. It is found that this force decreases with increasing distance between the coils and changes sign. This paper presents a calculation of this force and its characteristics. Finally, it introduces some experimental results.

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Magnetics, IEEE Transactions on  (Volume:32 ,  Issue: 2 )