Physics

  1. The shape of magnetic field around a magnet is shown by lines
    Image Upload 1
  2. Explain the diagram on the previous slide
    Arrows on the diagram point away from north and towards south to show the direction of the magnetic field . The closer the lines are the stronger the magnet is . The magnetic field can be seen by placing the magnet under a piece of paper with small iron filings on top . The filings line up in the shape of the field . The direction of the arrows can be seen by placing a compass in the field
  3. A magnetic field is also created if
    electric current moves through a conductor
  4. in a diagram show the magnetic field around a straight wire
    • Image Upload 2the magnetic field around a straight wire is circular , at right angles to the wire .
    • the magnetic field around a straight wire isn't very strong
  5. Reversing the direction of the current will
    reverse the magnetic field direction
Author
ghoran
ID
216592
Card Set
Physics
Description
Revision
Updated