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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 else can I help you with?
What is the capacitance of a parallel plate capacitor with a dielectric of oil-soaked paper The dielectric constant is 3.8 the distance between the plates is 0.00625 inches and the plate area is 0.25?
3.42*10^-11 farad.
What are the factor affecting capacitances of capacitance?
The area of the sheets, the distance between them, and the material between them.
What is dielectric constant?
A dielectric is an insulating material that does not conduct electricity and is transparent to an electromagnetic field. Dielectric materials are used to separate conducting surfaces such as the plates inside a capacitor, wires inside transformers, electric cable conductors, and elsewhere in the electric industry where electrical separation of charged elements is necessary. The dielectric constant is a ratio of the capacitance of a capacitor in which a particular insulating material is the dielectric, to the capacitance of the capacitor in which a vacuum is the dielectric.
How do you use a pcb as a capacitor in filter circuit?
A capacitor is simply two conductors in close proximity to each other, but not touching. This allows a charge to build up between them. It is entirely possible to build a small capacitor with a double sided printed circuit board. The area of the plates would be semi adjustable, in that you could cut out what you don't want. You can estimate the capacitance of a parallel plate capacitor with the equation... C = er e0 S / d ... where C is capacitance in farads, er is permittivity (also called dielectric constant), e0 is the electric constant, about 8.854 x 10-12 F m-1, S is area of overlap, and d is the distance between the plates. You would need to either know or measure the dielectric constant of the circuit board - for a vacuum, p is 1 - one way to measure is to build a test capacitor and measure its capacitance in a test circuit - perhaps an oscillator - and understand that (within limits) capacitance is proportional to the area of overlap and inversely proportional to the distance between the plates. For more information, please see the Related Link below.
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 is the capacitance of a parallel plate capacitor with a dielectric of oil-soaked paper The dielectric constant is 3.8 the distance between the plates is 0.00625 inches and the plate area is 0.25?
3.42*10^-11 farad.
What are the factor affecting capacitances of capacitance?
The area of the sheets, the distance between them, and the material between them.
What is dielectric constant?
A dielectric is an insulating material that does not conduct electricity and is transparent to an electromagnetic field. Dielectric materials are used to separate conducting surfaces such as the plates inside a capacitor, wires inside transformers, electric cable conductors, and elsewhere in the electric industry where electrical separation of charged elements is necessary. The dielectric constant is a ratio of the capacitance of a capacitor in which a particular insulating material is the dielectric, to the capacitance of the capacitor in which a vacuum is the dielectric.
Does increasing the plate area of a capacitor increases the capacitance?
Yes. Increasing the plate area of a capacitor increases the capacitance. The equation of a simple plate capacitor is ...C = ere0(A/D)... where C is capacitance, er is dielectric constant (about 1, for a vacuum), e0 is electric constant (about 8.854 x 10-12 F m-1), A is area of overlap, and D is distance between the plates. (This is only a good estimate if D is small in comparison to A.) Looking at this, you can see that capacitance is proportional to plate area.
On what factors capacitance of a capacitor depends on?
The job of a capacitor is to store charge onto its plates. The amount of electrical charge that a capacitor can store on its plates is known as its Capacitance value and depends upon three main factors.The surface area, A of the two conductive plates which make up the capacitor, the larger the area the greater the capacitance.The distance, d between the two plates, the smaller the distance the greater the capacitance.The type of material which separates the two plates called the "dielectric", the higher the permittivity of the dielectric the greater the capacitance.
How do you use a pcb as a capacitor in filter circuit?
A capacitor is simply two conductors in close proximity to each other, but not touching. This allows a charge to build up between them. It is entirely possible to build a small capacitor with a double sided printed circuit board. The area of the plates would be semi adjustable, in that you could cut out what you don't want. You can estimate the capacitance of a parallel plate capacitor with the equation... C = er e0 S / d ... where C is capacitance in farads, er is permittivity (also called dielectric constant), e0 is the electric constant, about 8.854 x 10-12 F m-1, S is area of overlap, and d is the distance between the plates. You would need to either know or measure the dielectric constant of the circuit board - for a vacuum, p is 1 - one way to measure is to build a test capacitor and measure its capacitance in a test circuit - perhaps an oscillator - and understand that (within limits) capacitance is proportional to the area of overlap and inversely proportional to the distance between the plates. For more information, please see the Related Link below.
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 happens when air is replaced by a dielectric medium of constant k the maximum force of attraction between two charges separated by a distance?
In a dielectric medium with constant ( k ), the force of attraction between two charges separated by a distance decreases by a factor of ( k ) compared to in air. This is due to the polarization of the medium which weakens the electric field between the charges, thereby reducing the force between them.
What are the functions of capicitor?
A capacitor is essentially a device that develops and stores an electric charge along a circuit. It consists of two conductive plates spaced a particular distance apart, with a material known as a dielectric between them.
What is the ratio of forces between two masses kept at a certain distance in the air to the force between them when kept in any other medium?
The ratio of forces between two masses in air to the force between them in any other medium is determined by the medium's relative permittivity or dielectric constant. In a medium with a dielectric constant other than air, the force between the masses will be reduced by a factor equal to the medium's dielectric constant.
What is capacitor LS?
The distance between the leads (lead spacing) on a radial capacitor
Does charge on a parallel plate capacitor depend on distance between the plates?
No, the charge on a parallel plate capacitor does not depend on the distance between the plates. The charge stored in the capacitor is determined by the voltage applied across the plates and the capacitance of the capacitor. The distance between the plates affects the capacitance of the capacitor, but not the charge stored on it.
