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The dielectric constant varies, depending on the material.
Wiki User
∙ 7y ago
Wiki User
∙ 7y agoThe answer will depend on the metal.
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Is relative dielectric constant dimensionless?
Correct: it is a dimensionless number.
What is dk measurement?
DK measurement is the measurement of the relative dielectric constant of liquids and solid material. It is a measure of permeability.
What is constant k?
There are a number of K constants:1) k, the spring constant in Hooke's law relating deformation (strain) and force applied (stress) to a material body.2) k or kB, the Boltzmann constant, the physical constant relating energy and temperature at the particle level.3) K is a thermodynamic chemical equilibrium constant.4) Coulomb's constant k e is used in measuring electrostatic interaction between electrically charged particles. It comes from three other constants: the speed of light c 0 , magnetic permeability μ 0 , and electric permittivity ε 0.5) κ (kappa), in semiconductor manufacturing, means a low-κ dielectric: a material with a small dielectric constant relative to silicon dioxide.
What is the definition of the term dielectric?
'Dielectric' is often used in a general sense to refer to a material (such as ceramic, mica, plastic or paper) which is a poor conductor of electricity. This term is used in the classical description of a capacitor -- two electric conductors separated by a dielectric. By applying electric charge to one conductor an electric field is created. The dielectric allows the electric field to pass through it and affect the other conductors; however the dielectric prevents electrons from flowing between the conductors, so the electric field remains (and the charge remains stored on the conductor). [Side note for beginners: An electric field creates a force (measured in Volts) upon an electron or charged particle which tends to make it move. The conductor allows electrons to move easily within it. The dielectric resists the movement of electrons in it.] More generally, we speak of a 'Dielectric Field' as a mathematic description of how electric charge influences the properties of the space around it. The Dielectric field interacts with space and with any material in the space to create an 'Electric Field'. In simple terms, the electric field at any point is the product of the dielectric field at that point and the 'Dielectric Constant' of the material at that point. In more general terms, the 'electric field vector' at a point is the tensor product of the 'dielectric field vector' and the 'dielectric tensor' of the material at that point. The dielectric field is not a measurable entity, but rather a mathematical tool that allows us accurately to model the electric field, which is measurable. The article on Dielectrics at http://en.wikipedia.org/wiki/Dielectric provides more description, especially on the dielectric field model.
Which one of the following does not affect resistance of a wire 1 length 2 dielectric contstant 3 temperature 4 cross-sectional area?
Answer - None of the above.1. Resistance increases in direct proportion to an increase in length.2. Dielectric constant is the tricky one as the answer may depend on your application. Dieletric constants are usually associated with insulators, not conductors.For fixed voltage/direct current, as long as the dielectric's voltage specifications aren't exceeded, the insulator remains intact. Going beyond that voltage results in current flow (short) and a significant reduction in resistance. So in essence, changing the dielectric constant will alter the resistive properties of your conductor/nonconductor.For situations dealing with alternating currents, capacitance becomes an issue - as there is a current flow as the electric field fluctuates, but just as before - the dielectric constant is not a factor in a component's resistance... until its voltage ratings are exceeded.3. An increase in temperature usually results in a decrease in resistance.4. An increase in cross sectional area results in a decrease in resistance.Note: If "none of the above" is not an option here, then I would have to select #2 as being the answer, with some qualification as noted.
What is dielectric constant of a metal?
It can be taken as infinity
What is dielectric constant in chemical terms?
dielectric constant
What is the sodium hypochlorite dielectric constant?
dielectric constant for sodium Hypochlorite
What is relative permittivity if dielectric constant of water is 80.10?
'Dielectric constant' is an archaic term for relative permittivity. They are one and the same.
Why does dielectric constant decrease with an increase in temperature?
If the temperature increases, the conductivity will increase too which means the dielectric constant is reduced
Is dielectric strength the same as dielectric constant?
No, these are two unrelated properties of a material.
What is the dielectric constant of Silver?
infinite
What is the Electric field inside a Dielectric?
E = Eo/k k is dielectric constant
What is the dielectric constant of cadmium selenide?
10.6
Why can't metal be used as a dielectric in a capacitor?
A metal can transmit the electron and the force so it is not a dielectric to electrons.
Can the dielectric constant of carbon in water be measured?
dielectric constant is a property of a material, this question is asking the property of a two mixed together, in an undeclared ratio. But yes dielectric constants can be measured. The problem you will have is keeping a uniform mix.
What is the relation between Dipole moment and Dielectric constant?
The dielectric constant is the ratio of the permittivity of a substance to the permittivity of free space. It is an expression of the extent to which a material concentrates electric flux, and is the electrical equivalent of relative magnetic permeability. As the dielectric constant increases, the electric flux density increases, if all other factors remain unchanged. This enables objects of a given size, such as sets of metal plates, to hold their electric charge for long periods of time, and/or to hold large quantities of charge. Materials with high dielectric constants are useful in the manufacture of high-value capacitors.
