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LED lights

Induction causes LEDs to light up
Author: Sander, Brugge, Belgium, [email protected]
Online since: 14/06/2011, Number of visits: 63604
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Sander from Belgium sent us an experiment to demonstrate induction. You can find other customer applications on this and similar topics under the keywords 'Induction' and 'Electricity'.

Materials needed:

  • 2 sphere magnets type K-13-C
  • Transport sleeve of the sphere magnets
  • 1 small plastic panel
  • 1 thin, transparent plastic sheet
  • Superglue
  • Enamelled copper wire
  • 1 red and 1 green LED

Assembly:

1. Cut out two rings with an inner diameter of 16 mm (= to the diameter of the sphere magnet transport sleeve).
2. Make an incision in one of the rings.
3. Roll the plastic sheet so it forms a tube and slide the two rings onto it, leaving a gap of approx. 1 cm.
4. Glue the rings to the sheet.
5. Trim off the excess sheet to the left and right of the rings.
6. Thread the copper wire into the cut ring.
7. Wrap the copper wire tightly around the 'coil'.
8. Remove the insulation from the ends of the copper wire by heating them or sanding them with sandpaper.
9. Align the LEDs anti-parallel (long leg of one diode to the short leg of the other) and solder the LEDs to both ends of the wire.
10. Slide the transport sleeve with 2 sphere magnets in it into the coil.
11. Shake the sleeve vigorously to light up the LEDs (see video).
Would you like a full dose of magnetism know-how? Discover our magnetism glossary now.

Articles used

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K-13-C Sphere magnet Ø 12,7 mm, holds approx. 2,4 kg, neodymium, N42, chrome-plated
K-13-C
Sphere magnet Ø 12,7 mm, holds approx. 2,4 kg, neodymium, N42, chrome-plated
K-13-C Sphere magnet Ø 12,7 mm, holds approx. 2,4 kg, neodymium, N42, chrome-plated
1 pc. 3,22 EUR ea.*
from 3 pcs. 2,86 EUR ea.*
from 10 pcs. 2,54 EUR ea.*
from 20 pcs. 2,38 EUR ea.*
from 40 pcs. 2,25 EUR ea.*
Ask for a rebate from 500 pcs.
Available: 5 210 pcs.
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