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Wesleyk89
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I am new to the site I apologize If I am posting incorrectly or doing something wrong. I need help figuring out how to increase magnetic field density (gauss/tesla's) extending from a magnetic object's surface, most magnets magnetic density is all in the center. I need this in order to induce a greater electromotive force on a copper wire. would an object charged by way of friction (rabbit fur on glass rod) have a greater field density but lesser pull force than your standard magnet? also could I take a ring magnet who's field density is concentrated most in the open center and have a copper coil pass through it in the center as opposed to having the magnet pass through the inside of a coil give me a greater EMF? and lastly, can I somehow incorporate an iron core to increase the EMF? maybe have the wire wrapped around a hollow lead core then pass a magnet through its center? and does a copper tube yield the same effect as a copper coil of a similar surface area?
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