Recent content by HMS-776

  1. H

    Dielectric Resonators, Resonant Frequency, and Dielectric Constant?

    Hello, I have been trying to better understand the effects of dielectrics in resonant cavities. I read that the addition of a dielectric in a resonant cavity will reduce the resonant frequency of the cavity. My questions: Is there any relation to the reduction of the resonant...
  2. H

    Why are carbon electrodes neutral in electrolysis of water?

    What is it about the atomic makeup of carbon electrodes that makes them neutral in electrolysis?
  3. H

    Need a list of core materials and their permeabilities

    Anyone know where I can get a list of different core materials and their permeabilities?
  4. H

    How can I find out what kind of core material this is?

    The core was actutally made from two of these cores back to back to form a square core. The cores were held tightly together on a jig to prevent a gap. The coils and core were designed to achieve a high coupling coefficient and mutual inductance.
  5. H

    How can I find out what kind of core material this is?

    No it's not ferrite, the permeability is too low I believe for it to be ferrite. If it's not ferrite or silicon steel what else could it be?
  6. H

    How can I find out what kind of core material this is?

    Ok, is there any kind of silicon steel with permeability in the range of 700-1000? I think it's all one piece which is .125" thick though...Isin't silicon steel only available in thin laminations?
  7. H

    How can I find out what kind of core material this is?

    I am working on a project and I need to find out what kind of core material this is... Unfortuantely I cannot ask the person who had it because they no longer have it. I don't think it's ferrite, the thickness is about .125", and the permeability is around 700-1000. It had several coils on...
  8. H

    Resonant wavelength of a cavity resonator using different internal materials?

    Hello everyone, Recently I have been studying cavity resonators. I noticed that all cavity resonators have air in them, but I was wondering what the effects would be if something other than air was used? For the sake of simplicity let's say we put a dielectric material in it with a...
  9. H

    What is the Mean Free Path of water in it's liquid state?

    What is the Mean Free Path of water in it's liquid state? Just wondering how far an electron could travel in water before a collision?
  10. H

    Monatomic hydrogen volume and diatomic hydrogen volume?

    What is it exactly that causes the diatomic hydrogen to have such a greater volume than monatomic hydrogen?
  11. H

    Question about capacitor voltage and inner dielectric effects?

    A capacitor is connected to a HVDC power supply which provides a minimal current. When the volage reaches the capacitor plates the dielectric material in the capacitor polarizes. Now, if there existed a barrier between the dielectric and the capacitor plate the capacitor could theoretically...
  12. H

    AC Applied to a capacitor and dielectric effects?

    Awesome, is there anywhere where I can find more information or read more about this effect? -Thanks in advance!
  13. H

    AC Applied to a capacitor and dielectric effects?

    Hi all, An electrolytic capacitor has 2 AC sources connected to it, 1 at each plate. The AC sources are 180 degrees out of phase and have a high impedance which limits current in the nA range. Even though each plate should have AC on it which is 180 out of phase the voltage at each plate...
  14. H

    Dielectric Polarization and leakage effects?

    When the dielectric in a capacitor polarizes does it effect the leakage current through the dielectric? Just wondering, if you had a capacitor with a lossy dielectric and you were able to polarize the dielectric would the leakage current drop? Can anyone give me any links for further...
  15. H

    What is the relationship between electron flow and the speed of light in a wire?

    I heard that electrons don't travel straight down a wire but that they spiral around the outer part of the wire as they travel down the wire. I know about the skin effect. Is there a name for this spiraling of electrons as they move through conductors? Anyone know where I can find more...
Back
Top