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What will happen to the electric field of capacitor if temp of polarized dielectric is increased?
That will depend on the dielectric. There will be two main effects - any change in the permeativity of the dielectric, and thermal expansion which will increase the distance between the plates. There will also be an change (probably an increase), in leakage current through the dielectric. Any change is very likely to be small or insignificant - I have worked in a factory making capacitors and temperatures were very variable, not controlled, for measurements of capacitance.
What else can I help you with?
A capacitor is a device which stores energy by?
Magic. Look up capacitors on wikipedia!!A capacitor stores electrical charges in its plates.Both wrong. A capacitor stores energy as an electric field developed in the dielectric between its plates. A good dielectric with high permittivity (once called dielectric constant) concentrates this field, allowing more energy to be stored in a capacitor having the same plate area and separation but a dielectric of lower permittivity.
Where does the energy of a charged capacitor reside?
In the electric field inside the dielectric (or insulating) medium separating the two plates
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.
Why does coulomb force between two point charges depends upon dielectric constant of the intervening medium?
It is because when a dielectric is placed between the charges , the dielectric gets polarized and the net electric field between the two charges decreases, hence force = charge x electric field also decreases. john
If the distance between the parallel plate capacitor is reduced to half and a dielectric of dielectric constant k is introduced then how does electric field varies?
From the formula, E = V/d, where V is the voltage and d is the distance, it can be seen that the electric field and the distance are inversely related. Thus, as the distance between the parallel plate capacitors is reduced to half, the electric field is increased twice. Moreover, is a dielectric constant k is introduced, the capacitance will increase. This direct relationship can be seen in the formula, C = [k(Єo)A]/d, where k is the dielectric constant. The lowest possible value of k is 1; and that is when the dielectric is a vacuum. Other dielectric constants are greater than 1, such as teflon which has a dielectric value of 2.1 As the capacitance increases, the electric field also increases. (E = 1/2(CV^2))
What is the effect of a dielectric material on the electric field of a capacitor?
A dielectric material placed between the plates of a capacitor reduces the electric field strength within the capacitor, increasing its capacitance. This is because the dielectric material polarizes in response to the electric field, creating an opposing electric field that weakens the overall field between the plates.
How does the insertion of a dielectric affect the capacitance of a capacitor?
When a dielectric is inserted between the plates of a capacitor, it increases the capacitance of the capacitor. This is because the dielectric material reduces the electric field between the plates, allowing more charge to be stored on the plates for a given voltage.
What is the effect of inserting a dielectric other than air or vacuum between the plates of a capacitors?
Inserting a dielectric material between the plates of a capacitor increases the capacitance of the capacitor. The dielectric reduces the electric field between the plates and allows for more charge to be stored. This results in an increase in the amount of electric potential energy that can be stored in the capacitor.
What is dielectric matter?
Dielectric matter refers to materials that do not conduct electricity easily but can be polarized by an electric field. These materials are commonly used in capacitors to store electrical energy and in insulators to prevent the flow of electricity. Examples of dielectric materials include glass, plastic, and ceramics.
Why can't metal be used as a dielectric in a capacitor?
Metal cannot be used as a dielectric in a capacitor because metals have low resistivity and would conduct electric currents instead of storing electrical energy. Dielectrics in capacitors need to have high resistivity to block the flow of electric current between the capacitor plates and store electrical energy in an electric field.
What is the effect of a dielectric on the energy stored in a capacitor?
A dielectric increases the energy stored in a capacitor by reducing the electric field strength between the plates, allowing for more charge to be stored at a lower voltage.
When a dielectric is inserted in to the plates which quantity remain same?
The capacitance of the capacitor remains the same when a dielectric material is inserted between the plates. However, the electric field between the plates decreases due to the polarization of the dielectric material, which increases the capacitance of the capacitor.
Why is air a dielectric material?
Air is a dielectric material because it contains molecules that can be polarized when placed in an electric field, allowing it to store electric charge and exhibit insulating properties. This property of air as a dielectric material is vital in various electrical and electronic applications.
What is the role of a dielectric in enhancing the capacitance of a parallel plate capacitor?
A dielectric in a parallel plate capacitor helps increase the capacitance by reducing the electric field strength between the plates, allowing more charge to be stored.
A capacitor is a device which stores energy by?
Magic. Look up capacitors on wikipedia!!A capacitor stores electrical charges in its plates.Both wrong. A capacitor stores energy as an electric field developed in the dielectric between its plates. A good dielectric with high permittivity (once called dielectric constant) concentrates this field, allowing more energy to be stored in a capacitor having the same plate area and separation but a dielectric of lower permittivity.
What is meant about di-electric constant?
The relative permittivity of a material is its dielectric permittivity expressed as a ratio relative to the permittivity of vacuum.Permittivity is a material property that expresses the force between two point charges in the material. Relative permittivity is the factor by which the electric field between the charges is decreased or increased relative to vacuum.Likewise, relative permittivity is the ratio of the capacitance of a capacitor using that material as a dielectric, compared to a similar capacitor that has vacuum as its dielectric. Relative permittivity is also commonly known as dielectric constant, a term deprecated in physics and engineering.
What is dielectric material?
A dielectric material is an electrical insulator that can be polarized by an applied electric field. It does not conduct electricity, but it can store electric energy as a result of its polarization. Dielectric materials are commonly used in capacitors to store and release electrical energy.
