PQOTD
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Computafreak wrote:
it's quite common to have a magnetic field around an object, but I'm interested into projecting it to another object. For example, I could be generating a magnetic field using the nail you specified, but projecting it onto another nail, giving it it's own 'copy' of the original nail's magnetic field
I'm quite confident of the impossibility of that short of transferring the EM field to the other nail and that would require the electricity flowing in the wires around the original nail to be moved to the other nail. The only perverted way of doing something similar to what you are saying is to inflict some sort of magnetism into the intended object, either by making it a permanent magnet or temporary one for your purposes.
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Mustafa Ismail Mustafa wrote:
I'm quite confident of the impossibility of that short of transferring the EM field to the other nail and that would require the electricity flowing in the wires around the original nail to be moved to the other nail. The only perverted way of doing something similar to what you are saying is to inflict some sort of magnetism into the intended object, either by making it a permanent magnet or temporary one for your purposes.
That sounds kind of like how a transformer works to me....a varying current flows in the primary coil of the transformer, with an associated varying magnetic field. That magnetic field induces a varying current in the secondary coil. Inductive charging[^] uses this principle.
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Mustafa Ismail Mustafa wrote:
I'm quite confident of the impossibility of that short of transferring the EM field to the other nail and that would require the electricity flowing in the wires around the original nail to be moved to the other nail. The only perverted way of doing something similar to what you are saying is to inflict some sort of magnetism into the intended object, either by making it a permanent magnet or temporary one for your purposes.
That sounds kind of like how a transformer works to me....a varying current flows in the primary coil of the transformer, with an associated varying magnetic field. That magnetic field induces a varying current in the secondary coil. Inductive charging[^] uses this principle.
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Mustafa Ismail Mustafa wrote:
I'm quite confident of the impossibility of that short of transferring the EM field to the other nail and that would require the electricity flowing in the wires around the original nail to be moved to the other nail. The only perverted way of doing something similar to what you are saying is to inflict some sort of magnetism into the intended object, either by making it a permanent magnet or temporary one for your purposes.
That sounds kind of like how a transformer works to me....a varying current flows in the primary coil of the transformer, with an associated varying magnetic field. That magnetic field induces a varying current in the secondary coil. Inductive charging[^] uses this principle.
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
Yeah, but that's not what I understood his question to mean. His idea was to "simply" translate a magnetic field from one location to the next. For a transformer to operate you need a complete circuit on the secondary coil and in addition to that, it has to be within the confines of the primary coil's magnetic field.
If the post was helpful, please vote! Current activities: Book: Devils by Fyodor Dostoyevsky Project: Hospital Automation, final stage Learning: Image analysis, LINQ Now and forever, defiant to the end. What is Multiple Sclerosis[^]?
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Thanks for the explanation. I know it's quite common to have a magnetic field around an object, but I'm interested into projecting it to another object. For example, I could be generating a magnetic field using the nail you specified, but projecting it onto another nail, giving it it's own 'copy' of the original nail's magnetic field
Between the idea And the reality Between the motion And the act Falls the Shadow
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That's true. I've not had a single fieldwork trip this school year; two were promised. Not a good sign when there are two 15-mark questions on the exam paper on 'how would you set up a fieldwork trip?' Just to give you an idea of the pain, I've been learning about how GW is completely true, about rebranding, globalisation, natural hazards, and extreme weather. The extreme weather unit is the single part which could have been useful, and the teacher wasn't there. I wasted a quarter of a year on this subject, and a year of my life at this school
Between the idea And the reality Between the motion And the act Falls the Shadow
Right, now I'm feeling ancient. Someone has already mentioned that to transfer a magnetic field, the foreign object would have to traverse the origional field. Think of static electricity, where you rub two balloons against each other, both will become charged at the point of contact. Bascially, the second item will become magnetised as well as the first becuase the first's field will have excited the electrons in the second object thus causing them to generate their own field. It's not a transferance as much as a excitation. My scientific 2c
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That was where I got the idea from; I was wondering if a complementary magnetic field on the receiving end was necessary
Between the idea And the reality Between the motion And the act Falls the Shadow
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Yeah, but that's not what I understood his question to mean. His idea was to "simply" translate a magnetic field from one location to the next. For a transformer to operate you need a complete circuit on the secondary coil and in addition to that, it has to be within the confines of the primary coil's magnetic field.
If the post was helpful, please vote! Current activities: Book: Devils by Fyodor Dostoyevsky Project: Hospital Automation, final stage Learning: Image analysis, LINQ Now and forever, defiant to the end. What is Multiple Sclerosis[^]?
Mustafa Ismail Mustafa wrote:
that's not I understood his question to mean
Agreed
Mustafa Ismail Mustafa wrote:
it has to be within the confines of the primary coil's magnetic field.
That's how I read your description :-) Which is why it sounded like a transformer to me.
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p