Does the direction of winding affect the induced emf in a an inductor coil?

AI Thread Summary
The direction of winding in an inductor coil influences the orientation of the magnetic field generated by the current flow. When wound in opposite directions, the magnetic fields produced will have opposite polarities, potentially affecting the induced electromotive force (emf). However, when connected to an alternating current (AC) source, the changing direction of current may negate the significance of winding direction since the current continuously reverses. The presence of a dot in circuit diagrams indicates the importance of winding direction in specific applications. Ultimately, while winding direction affects magnetic field orientation, its impact on AC circuits is less critical due to the nature of alternating current.
metalrose
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Hi,

What if the inductor coil is wound one way rather than the other. Then the circular flow of current will be clockwise in one case and anticlockwise in the other.

And if the inductor is connected to an ac source, then the current will vary.

Now in both the orientations, the variation in the current will give rise to magnetic field inside the coil.

But wouldn't the direction of mag. field be different (and opposite to each other) in the two different cases of winding the coil one way or the other?

Wouldn't that then result in the induced emf having different and opposite polarities in these two cases?
 
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Well it does matter, that is why you see a dot in circuits near inductor.

http://en.wikipedia.org/wiki/Inductance

But in AC in my opinion, it doesn't matter. Because current is changing direction anyway. But yes you would end up with different direction of magnetic fields, in one half-cycle(if you change the winding settings.)
 
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