Recent content by sarahwill

Then if a circulating electric field is around, there will always be a changing magnetic flux? So suppose I have a coil of wire. If the electric circulation around such a wire is zero, then there is no changing magnetic flux. Is it possible then to have a current in the coil of wire without a...

Thanks a lot for the advice and the search terms. I shall look into them. Again, thanks for the search terms

That's the whole point of the question. The law equates an induced voltage to the rate of change of flux of a magnetic field. So if there is an induced voltage, even if the induced voltage is constant, there should be a rate of change of magnetic flux through the coil right? What differentiates...

Faraday's law states that the curl of E is equal to the negative of the rate of change of a magnetic field. That means that a changing magnetic field causes a curling electric field. But then, shouldn't the opposite be true? That is, shouldn't an electric field with constant circulation...

Hello. If we assume an ideal transformer, why do we use a.c current in a transformer? I've searched and answers are that we need a changing electric current to produce a change in magnetic flux, using Ampere's law. However, Faraday's law states that a voltage produced a changing magnetic flux...