Electronic – Why doesn’t an inductor have polarity


Let's say we have a DC source connected to an inductor. The orientation of the magnetic field through the inductor depends on which direction the coil was wrapped (right hand rule). But why do we not care about it's polarity when we use inductor in the circuit? I guess we do care about polarity in terms of mutual inductance, but what about when only one inductor is used in the circuit?

Best Answer

We only care about the polarity of an inductor when the polarity of the magnetic field is important.

Such as with electromagnets or common mode chokes and measurement transformers.