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Why does the picture on the tv screen become distorted when a magnet is brought near the screen?
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).
What else can I help you with?
What is the name of the method of separating steel nails and brass screws?
Try a magnet!
What are the factors causing a permanent magnet generator not to generate emf?
A magnetic field will not generate an EMF if there is no motion, so the primary factor causing a permanent magnet generator to not generate EMF is if it is not turning.
Can a magnet delete everything on a computer by just putting it on the outside?
No. A magnet only interfers with magnetic fields ... lots of old IBMs used magnetic memory cards and that's where the stories started. It might erase a floppy disk, but an electro-magnet does the job much better than a perminant magnet.
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.
Does magnet attract unmagnetized iron?
Yes, a magnet can attract unmagnetized iron. This occurs because unmagnetized iron has domains of magnetic moments that can align with the magnetic field of the magnet, causing the iron to become temporarily magnetized. When brought close to a magnet, the unmagnetized iron will experience a force that draws it toward the magnet.
How a steel nail can become a magnet?
No it can't become a magnet.
What type of force can a magnet exert on a non magnetic objects?
A magnet can exert a force on a non-magnetic object through magnetic induction. When a magnet is brought near a non-magnetic object, the object can become temporarily magnetized and experience an attractive or repulsive force depending on the orientation of the object and the magnet.
What happens when a compass is brought closer to a magnet?
When a compass is brought closer to a magnet, the compass needle will align itself with the magnetic field of the magnet. This alignment occurs because the magnetic field of the compass interacts with the magnetic field of the magnet, causing the needle to point towards the magnet.
What is meant by a magnetic circuit?
Lines of force go from a North pole of a magnet to the South pole external to a magnet, and through the magnet itself. This path is the magnetic circuit. It may be diverted and distorted by magnetic materials nearby.
Do a steel nail and a magnet stick together?
A steel nail and a magnet can stick together because steel is a ferromagnetic material. This means that it can be magnetized and will be attracted to a magnet. When a magnet is brought close to a steel nail, the magnetic field can cause the nail to become magnetized, leading to attraction. However, if the nail is not magnetized or if the magnet is too weak, they may not stick together.
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.
What happens when a bar magnet is brought near a compass?
gago.
What happens when a magnet is brought near a magnetic compass?
gago.
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.
