Superconductors Electromagnets

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SuperconductorsElectromagnetsThe Tesla Coil

• Group 4

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Intro

• Superconductors, Electromagnets and, Tesla
  Coils are devices that help
• transfer energy
• make life easier

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What is a Superconductor?

• Material in which resistance in certain metals,
  alloys, and ceramics is essentially zero at
  certain low temperatures

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Creator of Superconductors

• Superconductivity was created by H.Kamerlingh
  Onnes in 1911

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Uses of Superconductors

• Magnetic Resonance Imaging
• Medical Studies of human heart, brain, and other
  physical science experiments
• A completely superconducting prototype computer
• High-powered magnets in medical imaging machines
  and particle accelerators

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Advantages of Supercondutors

• Small energy loses
• more cost and power efficient
• able to carry large currents for long periods of
  time with small energy loses at heat
• have carried currents for years with no
  recordable loses

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Disadvantages of Superconductors

• There is a restricted range for operating
  temperature
• not a practical room temperature device
• would have to be cooled with liquid Nitrogen
• sensitive to a changing magnetic field
• AC current does not work effectively with
  superconductors

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What is an electromagnet?

• A magnet consisting essentially of a coil of
  insulated wire wrapped around a soft iron core
  that is magnetized only when currents flow
  through the wire

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Creator of Electromagnets

• William Sturgeon created the first electromagnet
  in 1825

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Uses of Electromagnets

• To lift heavy masses of magnetic material
• To attract movable magnetic parts of electric
  devices
• In common electrical systems

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Advantages of Electromagnets

• Can carry much higher loads than permanent
  magnets
• Strength is readily controllable
• Can be switched off
• Can be made to work with loads of temperatures up
  to 600 degrees Centigrade

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Disadvantages of Electromagnets

• Not water resistant or shock resistant or heat
  resistant
• Power failure can cause damage/injures
• Eventual burnout

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Maglev Train

• It is a form of transportation that suspends,
  guides, and propels vehicles using the
  electromagnetic force
• Its highest speed was 361 miles per hour

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What is aTesla Coil?

• A Telsa coil is a transformer(a device used to
  transform electric energy) with an air core

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Creator of the Tesla Coil

• Nikola Tesla created the Tesla Coil in 1891

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Uses of Tesla Coil

• Used to conduct innovative experiments in
  electrical lighting, fluorescence,x-rays,high
  frequency alternating current phenomena,electrothe
  rapy, and wireless power for electrical power
  transmission

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Tesla Coil Lightning Car Protection
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Conclusion

• Superconductors, Electromagnets, and Tesla Coils
  have made life easier.
• They improved the flow of electric currents.