The COIL and the
wonderful properties of
INDUCTANCE
A tale of two properties….
 Electricity Makes Magnetism?
 Magnetism Makes Electricity???
 Electricity Makes Magnetism M...
What is Magnetism?
• The magnet is surrounded by an invisible
force field
• All magnets have a North and South POLE
• Oppo...
The iron core of
the earth allows a
magnetic field to
be created
Hans Christen Oersted
Flux Lines
Brain Waves
Joseph Henry’s Bigger and
“Badder” Electromagnet
Underwear saves the
electromagnet

Henry’s Electromagnet
2000 lbs winner

Testing Henry’s
New Electromagnet
Iron Tape
Technology
Back to the Present……

1st

5th

3rd

2nd

4th
Michael Faraday
Radio…Who’s your DADDY?

Electromagnet
Energy

Electro-mechanical
Speakers Section
How a DC Motor Works
Old Henry Makes a Transformer
Primary to Secondary Coil
Coil Symbol
Coils and inductance
Coils and inductance
Coils and inductance
Coils and inductance
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Coils and inductance

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Coils and inductance

  1. 1. The COIL and the wonderful properties of INDUCTANCE
  2. 2. A tale of two properties….  Electricity Makes Magnetism?  Magnetism Makes Electricity???  Electricity Makes Magnetism Makes Electricity?????
  3. 3. What is Magnetism? • The magnet is surrounded by an invisible force field • All magnets have a North and South POLE • Opposite poles attracted each other • All ferrous (containing iron) materials can be magnetized • The earth is the biggest magnet around
  4. 4. The iron core of the earth allows a magnetic field to be created
  5. 5. Hans Christen Oersted
  6. 6. Flux Lines
  7. 7. Brain Waves
  8. 8. Joseph Henry’s Bigger and “Badder” Electromagnet
  9. 9. Underwear saves the electromagnet Henry’s Electromagnet
  10. 10. 2000 lbs winner Testing Henry’s New Electromagnet
  11. 11. Iron Tape Technology
  12. 12. Back to the Present…… 1st 5th 3rd 2nd 4th
  13. 13. Michael Faraday
  14. 14. Radio…Who’s your DADDY? Electromagnet Energy Electro-mechanical
  15. 15. Speakers Section
  16. 16. How a DC Motor Works
  17. 17. Old Henry Makes a Transformer
  18. 18. Primary to Secondary Coil
  19. 19. Coil Symbol
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