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To find mutual inductance and coupling coefficient

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Dear all
I modelled a 3D spiral coil with two turns, of two different coil separated by distance. I applied the current density for the coils. I want to evaluate self inductance and mutual inductance between the coils then coupling coefficient. I evaluated self inductance by L= 2*Wm/I^2, where Wm is energy stored and I is current. Now i have to find the mutual inductance between the coils (as i done this using multiturn coil domain in 2D, but i dont have any idea how to use by in case of current density applied to coil as in global evaluation there is no inductance parameter ). I am attaching link here, as i can not attach model due to size

drive.google.com/file/d/0B7S7t...k5SlNoTVQ5Qzg/edit?usp=sharing
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kishore Naik Mude

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