Recent content by Maike

That's my problem... :( No idea

Homework Statement True or not true:[/B] Equipotential surfaces of the magnetic field are no closed surfaces but extend to infinity Homework Equations - The Attempt at a Solution I think it is true, because they are perpendicular to the (closed) magnetic field lines, but I am not sure...

Hey there! Lately, I saw a clip of a magnet and a floating strawberry. Is it real? How does it work? I am curious for your explanations.

Hello, Is it possible to derive the electric field of a dipole antenna mathematically? Does it look like a pure dipole far away? I am experimenting with these things and they are a bit mysterious to me. Thanks for your answers!

No there is no diagram or current or surface or anything. It just a question about magnetic flux in general. :(

We have only learned the equation of magnetic flux, the integral of B⋅da, and we have been busy with electromotive force. Perhaps that has something to do with it? The question is meant as general question about the definitions. It is stated as: Is the following statement true or not true...

Thanks very much for your answer! No more info was given in the question. Is it possible that the answer doesn't depend on the context?

Thanks very much for your answer! No more info was given in the question. Is it possible that the answer doesn't depend on the context?

Thanks very much for your answer! I think B is constant along the path because of the cylindrical symmetry. Or is that a wrong conclusion? Are you sure by the way that ∫J⋅da = I in this case? How can you know that J and da point in the same direction? Or doesn't it matter?

Homework Statement Does the magnetic flux depend on the shape of the surface or on the enclosed current? Or both or neither? Homework Equations - The Attempt at a Solution I have no clue. I guess a change in the enclosed current is a change in the field and thus a change in the flux, but I...

Homework Statement Suppose the magnetic field line pattern is cylindrical symmetric. Explain with Stokes theorem that the field decreases like 1/r (with r the distance from the axis of the cylinder). Homework Equations Stokes theorem The Attempt at a Solution I was thinking of a circular loop...