What is an electrect
An old topic but a quite interesting one though.
One can start to think ( or even can say ) confuse him/herself with a very simple idea about relations between an electret ( and electret type of materials ) and its CONDUCTIVITY to Dielectric Field ( Charles Proteus Steinmetz talks about the Dielectric Field in its extreme simplicity and beauty and its duality to the Magnetic Field - Elementary Lectures on Electric Discharges, Waves and Impulses, and Other ... - Charles Proteus Steinmetz - Google Books) and magnet ( and magnetic type materials ) and its CONDUCTIVITY to the magnetic field.
An electrect is an absorber/trap of the dielectric field in the same way that a magnet is an absorber/trap for the magnetic field. Any substance that is able to absorb dielectric field in high degree, and any substance/material can with different coefficients 0.0 ( no absorption ) to 1 ( full absorption ), can be named electret. A mirror/duality image of that is any substance/material can absorb magnetic field 0.0 to 1.
So now an electret is just a material with a sufficiently high coefficient of absorption ( probably a better word is needed here, interaction maybe? ) of the Dielectric Field - a dielectric constant - as a Magnet is a substance/material with a sufficiently high coefficient of interaction with the Magnetic Field - a magnetic constant.
A good electrect has high dielectric constant and low magnetic constant and a magnet has this in opposite.
Ones we start to think in this terms, flow of energy and its manifestation electricity, comprised by interacting dielectric and magnetic fields, gets to be a little more clear. The concepts, takes time to get used to, especially when all our lives, we have been given incorrect knowledge.
I cannot add that ones an electret is full ( you can imagine it a sponge full with water ) with electricity, and can not radiate to fast from the rate of absorption it starts sparking. This is why we cover our wires with dielectric material ( oil/plastic/wax based ), ones the material can not exchange the dielectric field fast enough with the electret it is contact with, the air, it starts sparking.
And now something that will make you even more confuse. A wire, or a metal, is actually insulator for the dielectric field. So the dielectric field permeates everything but what we know as "conductors". So, one starts to ask the question, what EXACTLY is a conductor and what exactly is insulator and for WHAT FIELD.
Ones we start to ask these questions and give satisfactory answers that can predict even the strangest of electrical manifestations we see, than we will be on the right path of understanding what we commonly know as Electricity, or the interactions between the Dielectric and Magnetic fields and their manifestations.
Best.
An old topic but a quite interesting one though.
One can start to think ( or even can say ) confuse him/herself with a very simple idea about relations between an electret ( and electret type of materials ) and its CONDUCTIVITY to Dielectric Field ( Charles Proteus Steinmetz talks about the Dielectric Field in its extreme simplicity and beauty and its duality to the Magnetic Field - Elementary Lectures on Electric Discharges, Waves and Impulses, and Other ... - Charles Proteus Steinmetz - Google Books) and magnet ( and magnetic type materials ) and its CONDUCTIVITY to the magnetic field.
An electrect is an absorber/trap of the dielectric field in the same way that a magnet is an absorber/trap for the magnetic field. Any substance that is able to absorb dielectric field in high degree, and any substance/material can with different coefficients 0.0 ( no absorption ) to 1 ( full absorption ), can be named electret. A mirror/duality image of that is any substance/material can absorb magnetic field 0.0 to 1.
So now an electret is just a material with a sufficiently high coefficient of absorption ( probably a better word is needed here, interaction maybe? ) of the Dielectric Field - a dielectric constant - as a Magnet is a substance/material with a sufficiently high coefficient of interaction with the Magnetic Field - a magnetic constant.
A good electrect has high dielectric constant and low magnetic constant and a magnet has this in opposite.
Ones we start to think in this terms, flow of energy and its manifestation electricity, comprised by interacting dielectric and magnetic fields, gets to be a little more clear. The concepts, takes time to get used to, especially when all our lives, we have been given incorrect knowledge.
I cannot add that ones an electret is full ( you can imagine it a sponge full with water ) with electricity, and can not radiate to fast from the rate of absorption it starts sparking. This is why we cover our wires with dielectric material ( oil/plastic/wax based ), ones the material can not exchange the dielectric field fast enough with the electret it is contact with, the air, it starts sparking.
And now something that will make you even more confuse. A wire, or a metal, is actually insulator for the dielectric field. So the dielectric field permeates everything but what we know as "conductors". So, one starts to ask the question, what EXACTLY is a conductor and what exactly is insulator and for WHAT FIELD.
Ones we start to ask these questions and give satisfactory answers that can predict even the strangest of electrical manifestations we see, than we will be on the right path of understanding what we commonly know as Electricity, or the interactions between the Dielectric and Magnetic fields and their manifestations.
Best.