Recent content by Fibo112

I am reading a proof for this statement and I don't understand one of the steps. It is stated that since the surrounding medium is nonconductive the flow of charge at the surface has no component along the normal of the surface. From this the conclusion is drawn that the E field along the normal...

Thanks for your answer! I am still a bit confused though. If a have some charge in a dielectric and look at the field it produces it will be smaller than the field in a vacuum by the factor of the dielectric constant. Let's say I have a charge surrounded by vacuum and the vacuum is surrounded by...

My basic understanding of a dielectric material is that the coulomb force between charges in a dielectric must be reduced by some factor since some of the electric field energy gets stored in the medium. The following thought experiment is confusing me and I am wondering where my mistake lies...

I can see now that the equality of charges follows from the uniqueness theorem.

I was recently solving a problem that involved a circuit with a capacitor that was connected to a battery at one end(the second plate just had a wire which didnt lead anywhere). In the solutions it said that this capacitor cannot have any charge since there is no path for the current to flow...

I forgot to mention that the spheres are conductors.

Will the total charges be equal?

Lets say I have two spheres of equal dimensions, one charged and one uncharged. Now I connect them with a conducting wire. They will now very quickly reach equal potential. Can it be said that the total charge on each sphere remains almost unchanged?

Ok, I think I understand what's going on. How about the case where there is a current carrying wire going through the center of the loop and the current is suddenly turned off. Wont this instantaneously change the amount of current going through the loop?( and thereby change the magnetic field...

I guess it must be zero, but I can't really see why. How does turning off the magnet not reduce its flux through the loop?

Ok. Doesnt Faradays Law say that the EMF around a closed loop is equal to the rate of change of the magnetic flux through that loop?

Hello I know that maxwells equations are consistent with relativity. The following thought experiment seems to imply otherwise so I am wondering where my mistake lies. Lets say we have some very large conductor loop(with a radius of many lightyears). At the center of the loop is some magnet...

I have learned about the electric fields of static charges and those of moving charges. From what I gather(although I have not really learned the specifics) when charges are accelerated they emit electromagntic waves which are essentialy an electromagnetic field progagating through space. My...

I have a plate capacitor with a given charge. It is then dipped in a dielectric fluid and I must determine which height the fluid reaches(all the necessary parameters are given). I can solve this problem if I make the following assumption: the polarization of the dielectric does not( or...