Magnetism & Electromagnetism

Subdecks (5)

Cards (35)

  • North -> south
  • magnetic field is stronger the closer it is to the magnet
  • magnetic material:
    Nickel
    Cobalt
    Iron
    Steel
    NCIS
  • Permanent magnets - A magnet that always has a magnetic field
  • Magnetically soft - loses magnetism very quickly eg Nickel , Iron
  • Magnetically hard - harder to lose magnetism eg steel
  • Electromagnetism - Using current to product magnetic field
  • Field lines always perpendicular to current
  • Solenoid - A coil of wire that produces a magnetic field when current is passed through it. Inside is strong and uniform
  • ways to increase electromagnet strength:
    Increase current
    Increase number of turns
    Decrease distance between each loop
    Iron core