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It is mainly called dielectric within the context of capacitors. The term refers to the properties that are relevant for a capacitors; specifically, it increases the capacitance (the amount of charge that can be stored for a given voltage).
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoThe classification of capacitor types by material such as paper, ceramic, or tantalum refers to the insulating dielectric.
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What is dielectric matter?
An electrical insulator that can be polarized by an external electric field.
What is the definition of a Teflon capacitor?
A teflon capacitor uses teflon as the dielectric, or insulator, between plates.
Material that do not let electricity go through is called?
Insulator!It is called an Insulator.
If a large enough electric field is applied how does an electric conductor become an insulator?
If a very large electric field is applied on a conductor then a phenomenon of a dielectric breakdown takes place and it looses all its charge carriers to the nearest conductor. Hence becoming an insulator.
What is space charge?
When a dielectric ( insulator) is kept between the two plates of a charged condenser, the atoms or molecules are polarised due to shifting of + nucleus towards negative plate and negative electrons towards positive plate of the condenser. Naturally, any dielectric contains certain defects like grain boundaries, voids, dislocations etc. The migrating charges accumulate at these sites creating additional polarization. This polarization is called space charge polarization. The charges accumulate at the interfaces of the dielectric and condenser plates is called inter-facial polarization, is also one kind of space charge polarization.
What is the insulator in a coaxial cable called?
It's called the Dielectric
Why such materials are good insulators?
Dielectric meterials are good insulator materials
What is dielectric matter?
An electrical insulator that can be polarized by an external electric field.
Where is the knowledge of dielectric strength helpful?
One field in which this is helpful is in the manufacture of insulating materials. Dielectric strength determines the strongest electric field an insulator can withstand before it fails. For example, if the insulation around a wire melts or breaks, the insulator's dielectric strength is compromised.
Dielectric constant of insulator depends on?
Frequency of alternating field applied & temperature
When is a material called dielectric?
Generally, 'insulators' are also called 'dielectrics'. But the term 'insulator' and 'dielectric' really refer to the properties of such materials. 'Insulator' describes the property of opposing current flow (or, strictly speaking, 'not supporting' current flow, due to its relative lack of charge carriers), while 'dielectric' refers to the property of supporting the establishment of an electric field which, in turn, acts to polarise its atoms and establish a (temporary) displacement current whenever a potential difference is first applied (or changed in magnitude).
What is the definition of a Teflon capacitor?
A teflon capacitor uses teflon as the dielectric, or insulator, between plates.
Which is the best electrical insulator?
According to a few charts I was able to find, the most realistic material with the highest dielectric strength happens to be Mica, with dielectric strength of 118.
If you take out the battery in a capacitor before inserting a dielectric will there still be charge on the dielectric?
The charge in a capacitor is between the plates. The dielectric is only an insulator that allows the plates to be very close without touching and discharging the charge. There is no battery in a capacitor.
What is the die electric constant for insulators?
There is no more the dielectric constant for insulators than the colour for shirts. Every shirt has a colour, and every insulator has a dielectric constant. Find out what material your insulator is, then look in Kaye & Labey or any good handbook for radio and electronics engineers.
What happens when dielectric breakdown occurs?
The dielectric,usually the insulator between the plates of a capacitor, can be overstressed by the application of too high voltages applied to the capacitor plates. The dielectric breaks down and a current flows between the plates until,either they are discharged, or an equilibrium is reached,below the working voltage of the capacitor. If the dielectric is damaged in this process he capacitor must be replaced. Some dielectric material self heal and can recover from an over voltage.
What is the definition of myelin sheath?
A myelin sheath is a layer of myelin (a dielectric, or electric insulator) around the axon of a neuron.
