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Hello, this is actually my first post on Physics Forums (I just joined)
The question above is the one that I thought that would grab the most attention.
I actually have 3 questions concerning magnets...
I require a special kind of magnet to complete my project, a magnet that the flux field lines continuously go around clockwise or counter-clockwise. Very similar to the magnets that were used in the REALLY old computers to store memory (I learned that in my set of old encyclopedias :D). I have a "donut" magnet that is the correct size and shape, except the flux lines act like a regular magnet (like a disc magnet with a hole in the center :P), in my project, this magnet is practically un-usable because of this (inconvenient) fact. I do not have such a magnet that the flux lines continuously go around, so I either need to make one or buy one :P
Question 1: What do you call such a magnet? I want to make sure that if I buy one, it is not like the one that I already have :P
Question 2: Is it possible to convert the magnet that I have now into the magnet that I need (by changing the direction of the magnetic domains)? By doing some sort of electro-magnet thingy to switch the direction of the field?
Question 3: If I can't make one, where would I be able to purchase such a magnet with the clockwise or counter-clockwise field, and not simply a regular field? I'd prefer it'd be some sort of store that I can examine the magnet in person before purchase (i.e. not on the internet). Maybe Menards or Staples, but I don't have a way to go from place to place, so I'd prefer to know exactly where I can get it before I drive my Mom crazy going from place to place :P
Remember, the magnet I need MUST have a clockwise or counter-clockwise field.
Thanks :)
Hello, this is actually my first post on Physics Forums (I just joined)
The question above is the one that I thought that would grab the most attention.
I actually have 3 questions concerning magnets...
I require a special kind of magnet to complete my project, a magnet that the flux field lines continuously go around clockwise or counter-clockwise. Very similar to the magnets that were used in the REALLY old computers to store memory (I learned that in my set of old encyclopedias :D). I have a "donut" magnet that is the correct size and shape, except the flux lines act like a regular magnet (like a disc magnet with a hole in the center :P), in my project, this magnet is practically un-usable because of this (inconvenient) fact. I do not have such a magnet that the flux lines continuously go around, so I either need to make one or buy one :P
Question 1: What do you call such a magnet? I want to make sure that if I buy one, it is not like the one that I already have :P
Question 2: Is it possible to convert the magnet that I have now into the magnet that I need (by changing the direction of the magnetic domains)? By doing some sort of electro-magnet thingy to switch the direction of the field?
Question 3: If I can't make one, where would I be able to purchase such a magnet with the clockwise or counter-clockwise field, and not simply a regular field? I'd prefer it'd be some sort of store that I can examine the magnet in person before purchase (i.e. not on the internet). Maybe Menards or Staples, but I don't have a way to go from place to place, so I'd prefer to know exactly where I can get it before I drive my Mom crazy going from place to place :P
Remember, the magnet I need MUST have a clockwise or counter-clockwise field.
Thanks :)
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