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).
Try a magnet!
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.
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.
Yes, but only if the magnet or the wire are kept moving.
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.
Yes - distorted or even erased.
When some pieces of plastics are brought near the magnet, they will get attracted.
No it can't become a magnet.
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.
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.
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.
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.
gago.
gago.
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.
Get attracted and stick on together
yes.when you slice a rod magnet it will still be considered as a magnet