Recent content by 655piano

  1. 655piano

    Potentiometer values and ratings

    Hello everyone. I need to replace this potentiometer. I an not sure how to comprehend these values. Also, I don't understand why there is a resistor in parallel. What is the wattage rating and is it possible to get a potentiometer that can operate correctly without that resistor?
  2. 655piano

    Electrical Fixing Warped Hemispheres for a DIY Van De Graaff Generator

    berkeman, yes I am a senior in high school. I have a few teachers that have inspired me and occasionally answer my questions. I've built bio generators, steam engines, distillation apparatus, a vortex cannon. Currently I'm working on this generator and also approaching my third month working on...
  3. 655piano

    Chemistry Chemistry or Physics? Advice for Senior in High School

    I'm a senior in high school and very interested in both chemistry and physics. I have a strong background in chemistry but I am starting to lean more towards a career in physics. Any advice for college classes or decision making?
  4. 655piano

    Electrical Fixing Warped Hemispheres for a DIY Van De Graaff Generator

    Ok thanks, Ill let you know how it works. Might have more questions pertaining to the rollers and belts.
  5. 655piano

    Electrical Fixing Warped Hemispheres for a DIY Van De Graaff Generator

    zoki85, That still doesn't seem like it would solve the leakage problem. The voltage on both bowls will be the same even if they are touching the slightest bit so the wire doesn't seem like it would do much. The charge wants to move to the outside and collect until it needs to discharge. When...
  6. 655piano

    Electrical Fixing Warped Hemispheres for a DIY Van De Graaff Generator

    this is an image of one of the bowls
  7. 655piano

    Electrical Fixing Warped Hemispheres for a DIY Van De Graaff Generator

    Ok, so I'm building a Van De Graaff generator from parts I've been collecting for some time now. I have 2 hemispherical bowls that were supposed to line up perfectly to make the ball at the top. shipping has warped them just the slightest bit. I'm wondering if this will produce coronal leakage...
  8. 655piano

    How to Overcome Static Friction?

    Hello PF world! After referring to this site for several years, I have finally decided to become a member. I hope I benefit even more from this site now that I am a member. I also hope I can help prospective physics students like myself.
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