Answer / nenad

The k (coupling coefficient between two coils) is defined as
ratio of product of two self-inductance and mutual
inductance of coils. Thus the geometry of the coils is and
relative position of the coils are crucial.

Answer / oladipo olubunmi ezekiel

K (coefficient of coupling between two coils) mutual
inductance between the coils and self inductances of the
coils.

Answer / gianluca

It depends on the self inductance of the two (or more) coils and on the geometry of the system (the mutual inductance is not correct because it depends on the coupling coefficient itself) so it depend on the dimension and the distance of the coils

Answer / yogesh

Mutual induction only.

Answer / barani

mutual induction not self induction

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