Hello. I'm am studying topics related to inductances and Faraday's law and I'm having hard time at PICTURING situations. Mental representations. So I propose an example of something I don't understand and we may go on from there. Consider circuit consisting of an inductance and an AC source. In texts it is said that voltage across the inductance must be opposite to voltage from the source due to Kirchoff's Law. Question: 1) If that is so, why is there any current at all? Second point is understanding causally in time an inductor. Suppose a steady current in an inductor, and suddenly we increase it an infinitesimal di ( or a finite value if you wish), Faraday's Law saws there will be an induced current to oppose the change, supose -di. But now current has changed again, and so on. I don't understand even what I don't understand. Thanks to everyone in advance.