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Re: RE: Variable Capacitance and Inductance
Original poster: "Alexander Rice by way of Terry Fritz <twftesla-at-qwest-dot-net>" <alex-at-rices.myip-dot-org>
26/05/2002 19:00:12, "Tesla list"
>Original poster: "David Thomson by way of
Terry Fritz <twftesla-at-qwest-dot-net>"
Oh for heavens sake, i wish this topic
would just die but i couldnt let this one
>Essentially what you are saying then is
that humidity alters the negative
>ion to positive ion ratio in a given
what on earth!! you are going to tell us
that it is altering the polaristion of
your moon crystals in the room temperature
water bubble fusion positronic drive that
powers your coil next.
Obviously the walls are
>not conducting in the sense of current.
But the walls could be conducting
>in the sense that they change to a
greater or lesser charge.
in what other sense do things conduct? the
extra parasitic resistance could shunt the
coil and fool the meter, ditto parasitic
capacitance since no LCR meter actually
measures DC inductance
This change in
>wall charge is what would affect the
capacitance of an object nearby?#
no, 'charge' (read electrostatic field)
does not affect the capacitance of things
in it - like inductance it depends on
geometry and materials.
>As for the measurement of inductance
being separate from the inductance of
>the physical coil, I take issue with this
thats fine - what i suggest you do is you
measure a standard resistor with your
multimter, then take the back off oyur
multimeter and use a compass to allign the
multimeter with london and then the
calibration pot pointer with mecca. now
maesure the resistor again. Hey presto -
without even touching it you have changed
the value of the resistor...
But inductance has NOT been proven to
>be a characteristic solely determined by
the physical characteristics of the
>coil. It has been proven that the
effective inductance of a coil can be
>changed without changing the physical
characteristics of a coil. Since the
>effective inductance of a coil can be
changed, the inductance measurement
>will also change.
effective is the important term here -
effective implies the apparent real world
inductance that has parasitic C and R -
what you measure is EFFECTIVE inductance -
you appear to have a problem separating
understnding that the real world deviates
from theory not because the theory is
worng but because it is incorreclty
applied - if you were to factor in the
parasitic R and C the readings will match
but this is uneccesarily complicated for
And this change reflects the working
inductance of the
>coil. Variations in inductance
measurements can mean the effective (and
NO - effective and real are different in
the same way that fact and fantasy,
guesses and theory, right and wrong are
>the inductance of the coil is variable.
yes it is, if you change its shape - this
includes the shape of the former, the
shape of your test leads etc.
Alexander JJ Rice
Rank : G-2 (Wahey!)
"Because the Geek Shall Inherit the Earth