GK
PHYSICS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Dielectric Strength
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Dielectric Constant
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Capacitance
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Potential Difference
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Detailed explanation-1: -Dielectric constant, ′ or permittivity, measures the ability of material to store charge or to act as capacitor in an electric field. The absolute values for this property should be as low as possible for a material to be considered as electrical insulator.
Detailed explanation-2: -The dielectric constant is a measure of the amount of electric potential energy, in the form of induced polarization that is stored in a given volume of material under the action of an electric field. It is expressed as the ratio of the dielectric permittivity of the material to that of a vacuum or dry air.
Detailed explanation-3: -The dielectric constant of a substance or material is a measure of its ability to store electrical energy. It is an expression of the extent to which a material holds or concentrates electric flux. Mathematically, dielectric constant is the ratio of a material’s permittivity to the permittivity of free space.