A doubt on self inductance and mutual inductance

AI Thread Summary
The discussion centers on the concepts of self-inductance and mutual inductance in coils. It clarifies that a change in flux in the primary coil induces an electromotive force (emf) in the secondary coil due to mutual inductance, while self-inductance accounts for the induced voltage in the primary coil itself. Both self-induction and mutual induction can occur simultaneously when the coils are in close proximity. The dialogue emphasizes that self-induction is always present, regardless of the interaction with another coil. Understanding these principles is essential for grasping the behavior of inductive components in electrical circuits.
ayush123
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i am having a doubt that when we find a expression for mutual inductance we say that flux change in primary coil induces emf in secondary coil. but why change in flux doesn't induce any current in primary coil also.
 
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ayush123 said:
i am having a doubt that when we find a expression for mutual inductance we say that flux change in primary coil induces emf in secondary coil. but why change in flux doesn't induce any current in primary coil also.

Who said it doesn't? It does. The voltage induced in the coil due to it's own flux is accounted for by it's self indictance while the voltage induced in another coil due to flux in the first is due to the mutual inductance.
 
u mean that when both the primary and secondary coils are at close proximity then along with mutual induction self induction also occurs. am i right.
 
Self-induction always occurs. Mutual induction occurs when components are brought in close enough proximity to allow coupling.
 
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