An electrical insulator that can be polarized by an external electric field.
For an insulating material dielectric strength and dielectric loss should be respectively high or low
Thermal loss in dielectric heating
This depends on the particular dielectric. Each has a different breakdown strength.
A dielectric material is a substance that is a poor conductor of electricity, but an efficient supporter of electrostatic fields
If the temperature increases, the conductivity will increase too which means the dielectric constant is reduced
A 'dielectric' describes a material that supports an electric field and is generally used to describe an insulating material. Two properties exhibited by a dielectric are its permittivity and its dielectric strength. High values of permittivity (abillity to improve capacitance) are desirable for dielectrics used in capacitors, and high values of dielectric strength (ability to withstand voltages) are desirable for insulators but, unfortunately, the two quantities aren't relatated. So, selecting a dielectric is a matter of compromise.
For an insulating material dielectric strength and dielectric loss should be respectively
dielectric constant
For an insulating material dielectric strength and dielectric loss should be respectively high or low
why need dielectric test for transformer
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.
Capacitors are named after their dielectrics. So, an 'air capacitor' uses air as its dielectric, a 'mica capacitor' uses mica as its dielectric, and so on. There are lots of different dielectric used to separate the plates of a capacitor, each with different permittivities and dielectric strengths. As the perfect dielectric (i.e. one with both a very high permittivity and a very high dielectric strength) doesn't occur, the choice of dielectric is always a compromise between it permittivity and dielectric strength.
dielectric constant for sodium Hypochlorite
Thermal loss in dielectric heating
A leaky dielectric is a poorly conducting liquid. Refer to "ELECTROHYDRODYNAMICS: The Taylor-Melcher Leaky Dielectric Model" for more information.
high and high
No, these are two unrelated properties of a material.