Recent content by Guest432

I've been reading up on electron diffraction for electron microscopy, and I have been trying to understand the proof for the wavelength of an electron in a tunneling electron microscope. The proof I have been trying to emulate begins as follows: It then says that I must account for...

I have been researching wave/particle duality, and I have trouble comprehending how electron microscopy actually exploits wave/particle duality to operate. From Wikipedia, " Wave–particle duality is exploited in electron microscopy, where the small wavelengths associated with the electron can...

Thanks! My limited googling just yielded electromagnetic interference. Do you have any more information about playing magnetic interference?

Say I place a magnet on a table, and I have a metal in close proximity. Will its magnetic field change due to the presence of this metal, however minute? What if I had another magnet or the table itself is made of materials the magnet is slightly attracted to? Does this phenomenon even exist?

Researching Biot-Savart's equation, I have come to this equation Just a few questions, why do they leave the intergration sign there? Can't they integrate with respect to r? Does the unit vector limit the integration until the variables are known? Additionally, Vernier physics models this...

I'm going through step by step trying to understand your proof, and I am going well, however I am curious as to where you got this information from?

Thank you for trying to explain that to me! Unfortunately you are correct in saying I need to learn vector algebra as this math is very confusing. In my experiment, I get a magnetic field sensor and point it at a a small neodymium magnet and increase its distance, recording the magnetic field...

I am just curious whether the formulas that apply to 'magnets', such as the formula for the magnetic field of a dipole (as brought up in my previous thread), apply to both electromagnets and permanent magnets, and other types? Is the magnetic fields exhibited by these different forms of...

That may be the case, even then, do you mind having a crack at explaining it to me?

Hello PF! I am trying to find out how the formula for the magnetic field of a dipole magnet is derived, so far I've delved into maxwell equations, but I am finding the math too complicated to read. My state's education system is very far behind, and I am not accustomed to characters and symbols...

Thanks for the replies! In an effort to gather credible sources to reference, I came across this website, and was wondering what you think about its credibility?

Hello PF! I am writing a scientific report about magnets, but have really no clue how magnets actually work? Research has yielded a few ideas, specifically from here and here. However, sometimes (in iron, nickel, and cobalt for example) you’ll have one or more un-paired electrons. The...

I've collected data of magnetic field strength vs distance. Could you suggest any ways this information is useful in the real world?

Hello PF! I am about to conduct a physics experiment to write my high school level paper on. I initially was going to investigate the Gaussian Gun, but my physics teacher has said that I need to have real life, practical applications of the model, and to also have a variable I can change and...

I see, is there some mathematical law that defines this, or is this just intuition?