La plate-forme collaborative de bricolages scientifiques et pédagogiques

Faraday torch

Note (?)
Difficulté (?)
Durée (?)4h 0 min.
Date07.06.2013
AuteurMartin
TraducteurMartin
Organismeinfo-energie
Coût (?)~20 CHF
Languefrançais english deutsch
License (?)
Partager

Building a Faraday torch helps to understand how it is possible to produce electricity from a magnet, a copper coil and a movement.  The same principle is used in most electricity plants. Depending on the plant, the movement is produced by different means (for instance by transferring the strength of water or steam to turbines).  In the case of the Faraday's torch, the movement is produced by our body which takes its energy from the food we eat.

This project uses an electric condenser that stocks for a while the electricity produced. It is an interesting solution as it avoids the use of batteries which are full of harmful chemicals and must be often replaced which is costly. The LED (light-emitting diode) used is also very energy efficient (doesn't waste too much energy to produce light).

 

 

Michael Faraday (1791-1867) is a British physician and chemist, well known for his studies in the field of electromagnetism. He has discovered the principle of electromagnetic induction, namely the production of electricity created by the movement of a conductor (ex. copper wire) close to a magnetic field.


16.05.2013 : Martin
Merci pour les remarques! L'erreur de connexion a été corrigée et l'image remplacée. Lire la suite
10.05.2013 : Nathalie Mancini
 Comme promis mais avec du retard voici quelques commentaires: bricolage sympa et intéressant.  Remarque en page 5 du mode d'emploi rubrique 4 il y 3 fils sortant de la partie gauche du sucre! au lieu de 2; l'utilisation de bouteilles lisses permettrait de mieux ajuster sur la longueur ...Lire la suite
22.11.2012 : 1D4ever
c'est tres cool!J'ai envie d'en faire un!:) Lire la suite

Matériel

Outils

Réalisation


Wind the copper wire around the centre of the tube on a width of about 4 cm .   It ...
Using the flame of a candle, melt the varnish at the two ends of the copper wire on about 2-3c ...
Cut off the plastic part of three of the connectors of the 7 connectors strip. This will help ...
Strip the ends of all electric wires. Connect the wires and the two copper coil ends to the el ...
Stick a strip of foam tape on the coil. Stick on top the strip of connectors and fasten it to ...
On each magic ball pick 4 pins so that they can surround and hold the tube without slipping fr ...
Cut the two PET bottles to create two parts that can be joined and hold tightly inside the tube ...
Using a drill with a 10mm bit, make a hole in the centre of one of the caps.   Punc ...
Pass the two free electric wires from the inside of the bottles and out through their necks. ...
Hold the two bottles tighly against each other.   Fix the two bottles in place with some ...
If needed, shorten up the wires coming out of the bottles.   Connect the two red wi ...

Fonctionnement

Liens&Références