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Mutual inductance of coil 1 with respect to coil 2 is M12. What general relation holds with M21?
AM12 is equal to M21
BM12 is inverse of M21
CM12 is twice of M21
DM12 is half of M21
Answer & Solution
Correct answer: A. M12 is equal to M21
For any pair of coils the mutual inductance is the same whichever coil carries the current.
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