Electricity%20and%20Magnetism

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Electricity and Magnetism

• By Adon Shapiro

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1st question How are magnetism and electricity
related

• The telegraph invented by Samuel F. B. Morse uses
  an electromagnet to make noise, certain sounds
  stand for different letters. A dot is a short
  sound a dash is a longer sound.

• Morse code
• A.-, B-..., C-.-., D-.., E., F..-.,
  G--., H...., I.., J.---, K-.-, L.-..,
  M--, N-., O---, P.--., Q--.-, R.-.,
  S..., T-, U..-, V...-, W.--, X--.,
  Y-.--, Z--.

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1st question How are magnetism and electricity
related

• How the Telegraph works
• When you push down the key it gives the electrons
  a free path which activates the electromagnet
  which pulls the strip down. The strip makes a
  noise when it hits the nail.

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1st question How are magnetism and electricity
related

• I made a coil with 1,000 turns around a plastic
  tube and attached a light bulb to the wires. When
  you drop a magnet through the tube the light bulb
  lights up. This is a very simple generator.

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Conclusions

• Part A An electric current has a magnetic field
  and if you coil it around a metal object it
  creates an electromagnet.

• Part B A moving magnet makes an electric current.