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Experience with electromagnetism


Magnetic pencil

What you need to prepare

  • A battery.
  • A thick pencil.
  • Copper insulated wire with a diameter of 0.2-0.3 mm and a length of several meters (the more the better).
  • Scotch tape.

The experiment

Namatay wire tightly round the pencil, not reaching its edges by 1, see Over one row - amatevi another top in the opposite direction. And so, until the end of the wire. Do not forget to leave free the two ends of the wire 8-10 refer To the coils after winding is not unwound, fasten them with tape - Scotch.

Sachiti the free ends of the wire and attach them to the connectors on the batteries.

What happened?

Turned out to be a magnet that will attract small metal objects.

The thunder and lightning. Experiments without explosions (Series Masterlike", 2000)

Your comments:

I just
2014-04-07 18:36:20
here's my pencil...
2013-12-28 22:46:27
2013-02-12 22:58:00
class 1
Put the multiplier from under root 75
2013-01-11 14:51:33
Your name (nick):
Enter the result of the calculation

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