Can We Really Can't See Magnetic Field???
by rshacker86 in Workshop > Science
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Can We Really Can't See Magnetic Field???
Hello Readers
Well today I was reading an article on magnetism on a website when I just came across one sentence -
" Though we cannot actually see magnetic field but just visualize it by sprinkling some iron crushes near a magnet".... But this was contrary to my observations made during last instructable..
Though you think it might be a joke but yes!!! I saw magnetic field around a magnet without those iron crushes...
Well today I was reading an article on magnetism on a website when I just came across one sentence -
" Though we cannot actually see magnetic field but just visualize it by sprinkling some iron crushes near a magnet".... But this was contrary to my observations made during last instructable..
Though you think it might be a joke but yes!!! I saw magnetic field around a magnet without those iron crushes...
Prerequisites
Before starting, just in case you might not be aware of magnet science, I would like to tell some important points....
1. Magnets were discovered years ago by a mountaineer. ..
2.When he just suddenly rested his iron stick on a piece of rock...He found it struck..and he had to apply some force to detach it...
3. Since then, magnets have fascinated scientists, children and others
IMPORTANT POINTS
1. Magnets have influence over other magnets or particles only upto a considerable distance...
2. As we move far away from the magnet, it's influence seems to dimnish. ..
3. The region upto which a magnet can have influence over other objects is called magnetic field of that magnet..
4. Magnets have two poles namely North Pole and South Pole. .
5. Magnets can be DANGEROUS if not used properly... check this out..
http://erean.eu/wordpress/how-dangerous-are-strong-neodymium-magnets/
6. Children require adult supervision to perform this experiment...
1. Magnets were discovered years ago by a mountaineer. ..
2.When he just suddenly rested his iron stick on a piece of rock...He found it struck..and he had to apply some force to detach it...
3. Since then, magnets have fascinated scientists, children and others
IMPORTANT POINTS
1. Magnets have influence over other magnets or particles only upto a considerable distance...
2. As we move far away from the magnet, it's influence seems to dimnish. ..
3. The region upto which a magnet can have influence over other objects is called magnetic field of that magnet..
4. Magnets have two poles namely North Pole and South Pole. .
5. Magnets can be DANGEROUS if not used properly... check this out..
http://erean.eu/wordpress/how-dangerous-are-strong-neodymium-magnets/
6. Children require adult supervision to perform this experiment...
Materials Required
1. One or Two magnets ( any type can be used..artificial, natural, NdFeB etc.)
2. An old CRT (Cathode ray tube) T.V. or Monitor
3. (Optional)Some plastic caps or pliers to hold the magnet...
2. An old CRT (Cathode ray tube) T.V. or Monitor
3. (Optional)Some plastic caps or pliers to hold the magnet...
What to Do
1.Unplug all cables from the T.V./Monitor except the power cord..
2. Turn the T.V. on and swith it on T.V./A.V. Mode....
3. Take your magnet and (Optional) cover it with a plastic covering or hold with pliers with insulated grip just for extra safety...
4. Bring this magnet near your T.V.
5. EUREKA!!!! Those blue red fields you see (In Pix 3&4 above) are magnetic fields...
2. Turn the T.V. on and swith it on T.V./A.V. Mode....
3. Take your magnet and (Optional) cover it with a plastic covering or hold with pliers with insulated grip just for extra safety...
4. Bring this magnet near your T.V.
5. EUREKA!!!! Those blue red fields you see (In Pix 3&4 above) are magnetic fields...
IMPORTANT NOTICE
This experiment may disrupt your T.V./Monitor by damaging the colour codes...Pink may appear Blue and so on...
ONLY USE AN OLD C.R.T. DEVICE...
ONLY USE AN OLD C.R.T. DEVICE...