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Why does the picture on the tv screen become distorted when a magnet is brought near the screen?
Wiki User
∙ 9y ago
Verified answer
A strong enough magnet brought close enough to the screen or to certain other parts of a television or computer monitor that uses a cathode ray tube will distort the displayed image.
This happens because a cathode ray tube image is created by shooting electrons at a phosphor-coated layer that glows where the electron stream strikes it. The stream of electrons is focused and targeted by magnetic fields within the TV tube. A strong enough magnetic field from another source will send the beam of electrons off target, distorting the image.
This does NOT happen with modern flat screen TVs and computer monitors because they do not use cathode ray tube technology to create the image.
The picture as seen on TV screen is due to moving charged particles (electrons).
Wiki User
∙ 9y ago
Noor Eman
The picture on a TV screen is formed by the help of beam of electrons.When a magnet is brought near the screen ,the beam of electrons will be deflected due to the magnetic field.Thus the target of the electron beam will be disturbed As a result ,the picture on a TV screen becomes distorted
Noor Eman
Foster Schroeder
Wiki User
∙ 9y agoThe magnet will pull the electronic beam towards the magnet and will burn the phosphors on the inside of the CTR. The same thing will happen if speakers are positioned too close to the side of the TV. You won't get the burning but the picture will become distorted.
Of course, this only applies to older CRT televisions. Modern LCD displays are not affected by a magnet, as they have no electron beams to distort.
Wiki User
∙ 12y agoYes. A magnetic field will attract the electron streams from the electron gun, causing distortion and color impurity. Also, it will magnetize the color aperture mask, leaving the distortion and color impurity behind. Degaussing will then be required.
(This applies to the cathode ray tube type of television; the more modern liquid crystal display is not as vulnerable to magnetic fields.)
Anonymous
The electric charges in motion produce magnetic fields. When a bar magnet brought close to the screen of a television we can observe that the picture on TV screen is distorted. ... This must be due to the fact that the magnetic field exerts a force on the moving charges. This force is called magnetic force.
Anonymous
When a magnet is brought close to the picture tubr
Anonymous
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What is the name of the method of separating steel nails and brass screws?
Try a magnet!
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Can a magnet delete everything on a computer by just putting it on the outside?
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If a magnet is held close to a coil of wire will it cause current to flow?
Yes, but only if the magnet or the wire are kept moving.
How do ends of a magnet differ?
Well, I'm not entirely sure, but if this helps, one end of the magnet is South (s) the other is north (n). The north attracts the south pole and the other way round. If north Poles or south) are put together they repel each other.
Can an audio cassette tape be affected by a magnet?
Yes - distorted or even erased.
What happens when peice of plastic is brought near the magnet?
When some pieces of plastics are brought near the magnet, they will get attracted.
How a steel nail can become a magnet?
No it can't become a magnet.
What is meant by a magnetic circuit?
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Where does a compass point when it is moved close to a magnet?
That depends on which pole of the magnet it is moved close to. If it is brought close to the "South" pole of the magnet, the "North" pointer of the compass will be attracted to the magnet. If it is brought close to the "North" pole of the magnet, the "North" pointer of the compass will be repelled and will point AWAY from the magnet, while the "South" end of the compass pointer will point to the magnet.
If a bar of copper is brought near a magnet the copper bar will be what?
If a bar of copper is brought near a magnet and rubbed it will get magnetized and would behave like magnet. But this would be temporary and this property would wear after some days.
How did a magnet become a magnet?
Ask a Mormon only they know how they work.
What happens when a magnet is brought near a magnetic compass?
gago.
What happens when a bar magnet is brought near a compass?
gago.
How a scrap heap magnet works by using a picture?
With your MIND.
What happens when the north pole of the magnet is brought near the south pole of a freely suspended magnet?
Get attracted and stick on together
Will rod magnet still become a magnet when it cut across into thin slices?
yes.when you slice a rod magnet it will still be considered as a magnet
