Recent content by Binki

Faraday's Diary Yes The Faraday Original notes are very interesting - please don't leave me out :smile: And it is nice to find someone else on the forum who has done some real and objective experiments with the homopolar theme Binki

Outside of the magnets Binki

Use two square iron plates a little larger than your disk and brush assembly with a hole in the centre for the shaft then join the two top and bottom with other plates. The magnets will stick themselves to the plates with holes. you obviously already have supports for your magnets, I don't know...

I Just had a little bit of inspiration at the time and it seemed like a good explanation because we don't know how much the field is anchored to the magnet anyway, the space through which the field travels may have a greater influence on it than the source of the field - Just another hypothesis...

Dont forget we are dealing with a subject that could have much wider conotations and that thrashing a magnetic field back and forth north to south etc has no bearing -in my mind- on a homopolar system. You have already quoted Tesla's surprise to the faraday motor effect and quite frankly I don't...

As far as I Know about Tesla that he studied all the known information on electricity of his time in colleges in his native Yugoslavia. Faraday was some 40 years before and it was Maxwell as a mathmetician that put into formulas Faradays research. Binki

Zooby Let us go a little further in this subject of whether the field turns or not. Lets assume that it does just for a moment and imagine that large fat ball or donut shape field is rotating and passing through all the surrounding materials some will be conductors and others not and still...

If the field is turning, you don't have it contained in any sort of way and the lines of force return to the oposite poles of your magnets. they pass through a very large area of space around your experiment you can follow them to some extent with a normal magnetic compass and you will find that...

Zooby About your experiment: If the field was rotating it would be generating the oposite current in the stationary plate and the external circuit, so would be giving you a null result. But I am inclined to believe the field doesn't move. Binki

I have explained all this before, but in order to make it clearer: The copper conductor is the support for the coils and the brushes and it is stationary(the coils and brushes also). The brushes draw current from the edge of the (so-called)F/Disk but you are seeing also is the iron keep...

Zooby the disk being iron or any other conducting material is not imortant, if we had placed a copper disk in the centre we would have had to increase substantially the field windings in order to keep the field strength at a maximum. About your sandwich idea, remember you will achieve...

Zooby Here's a fresh and better diagram of just one side of a rotor Binki

Yes, but don't forget that the faraday disk was also iron like the rest of the magnetic circuit, the only gap in the magnetic circuit was the famous 5mm gap all the rest was iron, so you get a perfectly even magnetic field. Binki

Zooby From the textbooks Voltage=number of lines of force cut per second divided by 100,000,000 Binki

Zooby Revise a little bit the calculation for generating a VOLTAGE: Speed, Field strength, Conductor Length. Speed relates to only one conductor on the faraday disk as oposed to being multiplied by the number of turns in a conventional generator. Field strength (Gauss) is the same for...