Assertion: cathode's electron | /r/CapableOf | travel to the anode
Facets:
value: to ionize the gas
type: PURPOSE
Source sentences:
text: As the electrons travel to the anode, they excite, as well as ionize, some of the residual gas molecules.
text: This is how vacuum diodes work in the first place; it's the cathode that is heated and which therefore emits electrons which move to the anode under the influence of an electric field pointing from anode to cathode (thus, cathode is negative), while the anode doesn't emit any electrons because it's cold, and the electric field prevents electrons from escaping.
text: Cathode rays are a stream of electrons originating from cathode and moving to an anode, when high voltage electric potential is applied to the electrodes sealed in a glass tube containing gas at low pressure.
text: These rays are beams of particles moving in a direction opposite to the "cathode rays", which are streams of electrons which move toward the anode.
text: The positive gas ions travelling to the cathode are less likely than the electrons travelling to the anode to ionize the gas.
text: In the following figure we see that the electron travelling to the anode has ionized two more gas molecules.
text: As a result, we now have three electrons (cathode rays) travelling to the anode and three positively charged gas ions (canal rays) travelling to the cathode.
text: This current allows for electrons to move to the anode and cathode.