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because Thomson saw the ray move from the cathode to the anode so the particles have negatively charge
Bennett Bode
Wiki User
∙ 15y agoWhen J.J. Thompson studied cathode ray tubes in 1895, he realized that the resulting rays were little more than streams of negatively charged particles. By bending the rays with a magnetic source and then measuring energy of the rays he could deduce the average mass per charge ratio of the particles in the tube. The ratio he uncovered was over a thousand times smaller than the known ratio of a hydrogen ion (aka proton) meaning it most be orders of magnitude smaller. This particle turns out to be what is now known as the electron.
Wiki User
∙ 12y agoThomson discovered in 1897 the electron and his negative electrical charge; from this Thomson concluded that the atom is not indivisible and also that the atom must contain and a positive charged particle.
Wiki User
∙ 12y agoIt showed that atoms are composed of smaller particles called electrons, of which the cathode ray is composed.
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What is the negatively charged electrode of a cathode ray tube?
The negatively charged electrode of a cathode ray tube (CRT) is the cathode. The tube is a cathode ray tube, and electrons stream off the cathode, are accelerated across the evacuated space and "directed" either electromagnetically or electrostatically, and then strike the phosphor coating on the positively charged anode at a "location" determined by the "directing" elements.
How was the Cathode Ray Tube Amusement device invented?
Cathode ray tube amusement device was created in 1947.
Why deflection is necessary in cathode ray tube?
It is not necessary in a cathode ray tube, it is a side effect and is needed in the calculations to ensure that there are no errors.
Can an animal see electrons emitted by a cathode ray tube?
no
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 following piece of equipment was used by jj Thomson to find electrons?
JJ Thomson discovered electrons using a cathode ray tube.
What is the negatively charged electrode of a cathode ray tube?
The negatively charged electrode of a cathode ray tube (CRT) is the cathode. The tube is a cathode ray tube, and electrons stream off the cathode, are accelerated across the evacuated space and "directed" either electromagnetically or electrostatically, and then strike the phosphor coating on the positively charged anode at a "location" determined by the "directing" elements.
What is the full meaning of CRT in computer?
A "CRT" is a cathode ray tube. An old style computer monitor (not computer).
Who first invented the cathode ray tube?
The cathode ray tube was invented in 1897 by Ferdinand Braun.
Why television are also known as cathode ray tube?
because cathode ray tube is the heart of the television.
Is cathode ray tube and electron tube same?
Yes they are the same. A cathode ray tube (CRT) uses an electron gun to "shoot" electrons from the cathode to specific positions on the anode of the CRT.
When did Cathode ray tube amusement device happen?
Cathode ray tube amusement device happened in 1947.
He conducted the cathode-ray tube experiment?
J.J Thomson conducted the cathode-ray tube experiment in 1911.
In the cathode ray tube where do the particles originate?
In a cathode ray tube (CRT), the particles, which are electrons, originate at the heated cathode, becoming the so-called cathode rays. The electrons stream off the cathode and rush over to the anode.
What is the flow of a cathode ray inside a cathode ray tube?
Electrons.
Which of these appliances uses cathode ray tube - electric fan refrigerator or rice cooker?
None of these appliances use a cathode ray tube. Older type TVs used a cathode ray tube, its common name was the picture tube.
Why did Crookes cathode ray tube glow green?
The electrons emitted from cathode hit the glass of the tube, causing it to fluoresce.
