Electromagnets

Description

Physics Mind Map on Electromagnets, created by Henry Simmons on 28/05/2013.
Henry Simmons
Mind Map by Henry Simmons, updated more than 1 year ago
Henry Simmons
Created by Henry Simmons over 11 years ago
49
1

Resource summary

Electromagnets
  1. field Lines
    1. all start from a magnet
      1. go further and further out with every line
        1. forms a circular pattern
          1. weaker and weaker as it goes away from the magnet
    2. improvments
      1. Iron Core
        1. makes the magnet stronger
        2. More turns on the coil
          1. Copper wire
        3. current goes from N-S
          1. Magnetic metals
            1. Iron (Fe)
              1. Pure so that means it is better (stronger)
              2. Steel
              3. Used in...
                1. Speakers
                  1. Used in hospitals to remove bits of iron and steel from the eye
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