answersLogoWhite

0


Best Answer

Basically the thermionic rays are fast moving electrons. They originate in the region having an excess of electrons. So originate from the cathode.

User Avatar

Wiki User

9y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Where does the thermionic emission occur in cathode rays tube?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Why cathode rays are negatively charged?

Cathode rays are produced when the metal cathode has a high voltage applied to it - this has the effect of "boiling" the electrons off the cathode's surface producing cathode rays, and so cathode rays can be seen as a stream of electrons i.e. negatively charged particles.AnswerElectrons are released from the surface of a cathode through thermionic emission. This is achieved by a heaterlocated at the cathode, and not due to a high voltage. The function of the high voltage (between the cathode and an anode placed closer to the screen) is to attract these electrons towards the screen of the CRT. So a 'cathode ray' is simply a beam of electrons which, of course, are negatively charged.


How do cathode rays form?

Cathode rays are the emission of free electrons form the negative pole of an electric circuit. To get this to happen you need to warm the cathode and place it in a vacuum tube with a high voltage across it. The electron then jump form the cathode and fly across the empty tube to the anode (positive end). They may be bent by magnetic fields in flight.


Cathode rays were found to be made of protons.?

Cathode rays are electrons.


Cathode rays were shown to be a stream of?

Cathode rays are electrons.


What are the uses of Cathode Rays and Anode Rays?

cathode rays can emit electrons anode can collect them


What is the charge of the particle in cathode rays?

Cathode rays are attracted to the positive charge on the anode! They are repelled by the negative charge on the cathode.


What is the modern day name for cathode rays?

Cathode rays are electron beams.


Is cathode rays are material particles?

The cathode ray is a stream of electrons.


How do negatively charged plates affect the path of cathode rays?

negatively charged plates affect the path of cathode rays by repealing the cathode rays.


In cathode ray tube cathode and anode rays travel opposite to each other but they are not neutralized. why?

There is no such thing as anode rays. The cathode rays (aka electron beam) just travels from cathode to anode.


What did experiments with cathode rays lead to the discovery of what?

experiments with cathode rays lead to the discovery of the Electron.


Why are cathode rays similar to light?

they aren't. cathode rays are charged electrons, light is uncharged photons.