Reed switches. A reed switch consists of two flexible ferromagnetic metal contacts in a sealed glass tube. The contacts are normally separated by a small gap, therefore the switch is open. In a magnetic field the contacts are pulled towards each other and the switch closes. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Turtle Rock Scientific LLC |
Taille de l’image : | 6888 px × 4597 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |