repulsion

  1. M

    Force between Parallel Current Carrying Wires

    1. Homework Statement Two parallel wires have currents that have the same direction, but differing magnitude. The current in wire A is I, and the current in wire B is 2I. Which one of the following statements concerning the situation is true? A) Both wires attract each other with the same...
  2. M

    I Magnetic repulsion of solenoids

    I'm trying to understand the repulsive forces of solenoids. This is all paper as in I don't actually have them to test in real life. Take two solenoids that are equal to each other. Specifications: current is 10 amps Number of turns is 300 Iron rod is 12 inches/ 304.8mm, with a Radius of 2...
  3. iHaveQuestions88

    The Decay Rate of a Hypothetical Antimatter Container

    Hi All, First time poster here, and I've got a couple questions. Straight up, I'm writing a sci-fi story where antimatter is utilised as fuel (feel free to laugh at the cliche), and I want to portray it as realistically as possible. To that end, I've come up with a storage method and I want to...
  4. Behrouz

    I Quark and lepton charges

    Hello everyone, I'm sorry if it's a dumb question, I'm very new in self studying particle physics. May I ask when we associate a charge (i.e. positive or negative) to quark and lepton, is it only because of their attraction or repulsion toward each other? in other words, is it just to name one...
  5. M

    Metal sphere drawn and then repelled by charged rod

    1. Homework Statement An uncharged metal sphere hangs from a nylon thread. When a positively charged, nonconducting glass rod is brought close to the metal sphere, the sphere is drawn toward the rod. But if the sphere touches the rod, the sphere suddenly flies away from the rod. Explain why...
  6. C

    Charge/Field/Velocity Problem

    1. Homework Statement 2. Homework Equations F=kqQ/D^2=Ma E=kQ/D^2 D=vt? 3. The Attempt at a Solution So far, I've been able to label the forces on each ship through superposition. But that is all I currently able to understand. I know that my end solution is a speed/velocity, but I am not...
  7. A

    Filling bag with elementary particles

    Hello.This is probably totally stupid question, but anyway... Is it possible to create bag made of particles with very strong positive charge and electrons using attracting force between them? If theoretically at least in some parallel universe yes, then if we keep shooting electrons inside...
  8. Y

    Electromagnetic Repulsion

    1. Homework Statement I have made an electromagnet using the primary core of a microwave oven transformer and a 1.5 D cell battery. I would like to use the electromagnet to repel an aluminum bar (1 in. dia., 3 in. in length, and 1/4 in. thick; it is shown in the picture) For some reason, the...
  9. V

    Bond energy - (Force/ potential E vs interatomic separation)

    Hey guys, So, I was in my materials lecture today and something the lecturers and the tutors said was slightly confusing. We were talking about the repulsion and attraction force between atoms. This is all good as I can understand how if two atoms will repel each other if they get really close...
  10. Arjang Sh

    Electrostatic repulsive force between parallel plates

    Hi I was thinking about two parallel plates with same charges (there's no electrical field between them). How can we calculate the repulsive force? Does anyone have any ideas besides numerical integration? Thanks
  11. J

    What happens when you remove an excessive amount of electrons.

    Lets take a simple water molecule for example. You can use the photoelectric effect to remove electrons from a molecule. As a thought experiment, lets say you have a contained single water molecule in a vacuum with no impurities. Perfect Vacuum. If you use the Photoelectric effect and beam...
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