Magnetism Definition and 954 Threads

  1. D

    Calculating Magnetic Torque: Circular Wire Loop in a Uniform Field

    A circular loop of wire of radius .5m is in a iniform magnetic field of .30T. the current in the loop is 2A. what is the magnetic torque when the plane of the loop is parallel to the magnetic field? Ok i first misread this and assued that it meant parallel or sin(90 degrees) which equals 0...
  2. K

    Why Does a Charged Particle in a Magnetic Field Perform Circular Motion?

    http://www.geocities.com/bridgestein/Bffield.jpg (copy and paste the above address to your browser please) In fact I know the answers of this problem, but I have a question. Here's the question. A charge +q moving with constant velocity v enters into a uniform magnetic field region as...
  3. J

    Undergrad How Do Moving Charges Interact with Magnetic Fields?

    Magnetism Related Questions, Please Help! There are three questions that I need help with, all of which are focused on the main topic of Magnetism (The Magnetic Force on Moving Charges). Before I begin, I would just like to thank anyone that will be able to provide me with some assistance in...
  4. S

    Graduate Levitating Magnetism: Understanding the Science Behind Magnetic Levitation

    I have seen what I seem to remember a disc made of super conducting material levitating over a substance I seem to remember as some form of liquid gas. Is there anyone who could please clue me into what I was observing and how it operates? Does what I observed somehow relate to opposing forces...