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Andy kemagnetan(presntasi)


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Andy kemagnetan(presntasi)

  1. 1. The origins of MagnetWhere does a magnet? Based on magnetic origin there are two types, namely - Magnets nature - Artificial magnets
  2. 2. Artifical MagnetArtificial magnet there are two types, namely: > Hard Magnets > Magnet software
  3. 3. Hard magnetsHard magnet made ​of steel, is made difficult yet powerful and permanent nature magnetism. Example: Cassette and Compass
  4. 4. Soft magnetUsually made ​of soft magnetic iron soft, easy to make but magnetism weak and transient nature. Example: electric bell and a tool to remove iron
  5. 5. Magnetic FieldThe magnetic field is the region around a magnet that is still influenced by the magnetic force
  6. 6. Magnet materialsBased magnetism, the object is classified into: Magnetic materials (ferromagnetic), which is a strong material that can be drawn by a magnet. Examples of iron and steel Non-magnetic materials - Paramagnetic, is weak material drawn by a magnet. Examples of alumunium and wood - Diamagnetik, is material that is rejected by the magnet. examples of gold
  7. 7. Parts of the magnet magnetic polesMagnetic poles: the end ofthe magnet that hasthe most powerfulmagnetic force (south andnorth)Magnetic axis: of the magnetic axisa line connecting thetwo poles of a magnet
  8. 8. In a magnet, elementarymagnets arranged neatly and direction. Giving rise to themagnetic polesIn the iron is not magnetic,elementary magnetsarranged in differentdirections. So can not causethe magnetic poles.
  9. 9. Making MagnetsThere are three ways to prepare elementary magnets (made ​magnetic) First : rubbed with a magnet Second : induced by the magnetic Third : by using a DC electric current
  10. 10. Rubbed with a magnet
  11. 11. Induced by the magnetic
  12. 12. By using a DC electric current
  13. 13. Direction of the magnetic field