Mostly Permanent Magnet Motor with minimal Input Power

[gotoluc]

In other words, its possible that the parallel might outperform distance wise than series if the resistor is not there at all.

Night

Mags

Good point about the resistor Mags. Wonder why you're the only one who thought of this?
I only used it in my high voltage tests to see the phase difference between voltage and current as the voltage goes up. I couldn't see any.

I'll try it again with 1kv without a resistor and measure the upwards travel distance and retest with a resistor to see how much it changes.

Luc

[gotoluc]

Hi Mags,

the results are very bad with high voltage

With coil connected in series and no resistor the 2.35kg weight raised by 1mm using a 3.44uf ac cap charged to 1000 vdc  = 1.722 Joules

With coil connected in parallel using same cap and charge, the rise was too low to measure.

The low voltage wins hands down with a 23mm rise with 1 Joule input

Luc

[MileHigh]

Luc:

Parallel/series is not appropriate terminology for what you are doing.  Two wires in parallel to form a coil act like a single wire with less resistance.  Two, three, four or more wires in parallel wrapped around a spool to form a coil are in fact a single wire as far as the coil is concerned.

You have two pieces of wire of equal length.  Each wire makes N turns.  Each wire has R resistance.

When they are in series you have 2N turns, with 2R resistance, and 4 units of inductance.

When they are in parallel you have N turns with 0.5R resistance and 1 unit of inductance.

Let's say each wire gives you 100 turns.  So the simplified description of your test is that you are comparing a 100-turn coil with a 200-turn coil.  That's what you are really doing.  The resistance of the coil is also an important secondary parameter.

The fundamental parameter for the magnetic field strength of a coil is ampere-turns.

When you discuss anything to do with coil experiments the current through the coil and the number of turns are the variables of paramount importance.  The voltage that you drive the coil with is just a means to put current through the coil.  Coils are current-based devices and current is what it is all about.

So again, you are not testing "series vs. parallel."  What you are really testing is 2N turns vs. N turns.

[Magluvin]

Parallel and series is just a description of how the 2 side by side windings are connected in each test.

Mags

[Khwartz]

Hi Mags,

the results are very bad with high voltage

With coil connected in series and no resistor the 2.35kg weight raised by 1mm using a 3.44uf ac cap charged to 1000 vdc  = 1.722 Joules

With coil connected in parallel using same cap and charge, the rise was too low to measure.

The low voltage wins hands down with a 23mm rise with 1 Joule input

Luc

Hi Luc! Nice to see you are now fully self-related with these kind of calculations; and nice you now use and share your results on this base! Cheers!