Thanks very much, Jerry
Bert, thanks so much for your great insights on Tesla. I'm currently building a motor utilizing flat coils (8"W, 23awg, 2" air core, 300turns) and N48 magnets. Would it be best to use a standard winding flat air core coil or use Tesla's parallel winding method that he patented in 512,340? I am pulsing the coil with about 300vdc through a commutator but am looking to pulse the dc to the coil by electronic switching rather than draw extra load by physical contact.
My questions are these:
1).What does the magnetic field look like in a flat coil? I thought of using Ferrofluid to view it in 3 dimensions but the wife has me on a tight budget.
2). Will stacking the coils (and connected in series) increase the magnetic field?
3). When permanent magnets are stacked, at what point (er how many) will adding more not increase the field? E.E. is is better to buy one 2"x2" rather than four 2"x.5"?
4). What is the best way to switch 300vdc @ about 50ma?
5). And lastly, when a flat coil (or any coil)is de-energized, the magnetic field's polarity changes is that correct?
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Thanks very much,