| Kieli | Käännökset |
|---|---|
| hollanti | kathodestraal |
| ruotsi | katodstråle |
| unkari | katódsugár |
| Monikko | cathode rays |
(electricity) A ray consisting of a stream of electrons in a vacuum tube that are emitted by the cathode and accelerated towards the anode by an electric field.
A beam of cathode rays in a vacuum tube bent into a circle by a magnetic field generated by a Helmholtz coil. Cathode rays are normally invisible; in this demonstration Teltron tube, enough gas has been left in the tube for the gas atoms to luminesce when struck by the fast-moving electrons.