ENERGY AMPLIFICATION

[Dave45]

Me and my crazy theory's

[d3x0r]

@dave45


a collapsing field doesn't make the current reverse.


1) Initiially an inductor opposes a change (resistance to acceleration)
2) then an inductor mtaintains a same current (body in motion remains in motion)
3) then when the current starts to diminish, the coil collapse wants to keep the current going in the same direction


back EMF is the force against the initial current increase... (1)
forward EMF is the force that keeps the current going (3)

field collapse doesn't not mean current in reverse

[a.king21]

@dave45a collapsing [color=rgb(27, 142, 222) !important]field[/color] doesn't make the current reverse.



Yes it does . Do the experiment.
It also raises voltage.
Do the experiment.
It's called radiant energy.

[a.king21]

Tito:


How about a Christmas present to us all with a big clue?


Merry Christmas.

[d3x0r]

@dave45a collapsing [color=rgb(27, 142, 222) !important]field[/color] doesn't make the current reverse.



Yes it does . Do the experiment.
It also raises voltage.
Do the experiment.
It's called radiant energy.

Does it?
Let's try and make a figure.


Power -> coil -> switch-> ground ... +(power) -> +(power end of coil) -> +(low end of coil) -> (open) -> 0
(close switch, and electron current will pass from higher - to satisfy the vacuum of +)


  + -> + -> - -> 0 -> 0


  current flows to the left; no reversal yet


  (open the switch )


  +  ->  (less than +)  -> (growing to +) -> (open) -> 0
  +  ->  (up to positive) -> (grows past the +  point) -> (open) -> 0


now at THIS point, the potential at + power is less than the potential at the end of the coil nearest the switch, at this point, current will flow backwards through the coil.    But at this point the field has entirely collapsed, and a new field is built.


That experiment isn't about current reversal in the primary coil....


so given two parallel lines... change in current (increase) causes a reverse pull of current in near filaments; until the current is constant, then the displacement stops.
When the current stops, it causes a reverse current in near filaments as the induction wants to keep going forward, so it leverages against near things in the opposite direction.  The current in the primary never reversed.


So when dealing with a secondary inductor it's whether your primary current is rising or falling that determines direction in the secondary.


If the secondary is open ( not conducting), it only has a very tiny capacitance, so it will shift a little, but most of the reverse current pull will be back on the primary itself.  This leads to more work being done to get the current going while the load is disconnected.  Connecting a load allows the primary to leverage against the secondary, and impede itself less.