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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).
Wiki User
∙ 12y ago
Wiki User
∙ 16y agoThe big Transformers you find on power poles usually use oil as a dielectric insulator, In smaller HV transformers, like the ones in TV's are usually filled with resin.
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For an insulating material dielectric strength and dielectric loss should be respectively?
For an insulating material dielectric strength and dielectric loss should be respectively
Is dielectric strength the same as dielectric constant?
No, these are two unrelated properties of a material.
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.
Is there any material having dielectric constant less than 1?
Yes, these fall in a class called metamaterials.
Best dielectric material for corona discharge?
Mica sheet
For an insulating material dielectric strength and dielectric loss should be respectively?
For an insulating material dielectric strength and dielectric loss should be respectively
For an insulating material dielectric strength and dielectric loss should be respectively high or low?
For an insulating material dielectric strength and dielectric loss should be respectively high or low
What is dielectric material?
A dielectric material is a substance that is a poor conductor of electricity, but an efficient supporter of electrostatic fields
For an insulating material dielectric strength and dielectric loss should be what?
high and high
Is dielectric strength the same as dielectric constant?
No, these are two unrelated properties of a material.
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 dielectric?
Insulation property of a material
Dielectric constant of metal is?
The dielectric constant varies, depending on the material.
Why is insulator called dielectric?
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).
Is there any material having dielectric constant less than 1?
Yes, these fall in a class called metamaterials.
How light propagates through a material is given by the ratio of the speed of light in vacuum to the speed of light in that material. What is this ratio called?
That is called the dielectric constant, also the square root of the relative permittivity.
What is the fill material in the run capacitor?
Plastic dielectric
