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Rajat jaiswal
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friends,
can anyone explain me the effect of electric field on a dielectric(non- conducting) medium
can anyone explain me the effect of electric field on a dielectric(non- conducting) medium
A dielectric is a material that is able to store electrical energy, and is often used to separate and insulate conductive materials.
An electric field causes the polar molecules in a dielectric material to align with the direction of the field, resulting in an induced dipole moment. This alignment of molecules decreases the overall electric field within the material.
The dielectric constant, also known as relative permittivity, is a measure of a material's ability to store electrical energy compared to a vacuum. It is represented by the symbol ε and is a dimensionless quantity.
A higher dielectric constant means that the material is better able to store electric charges, resulting in a stronger decrease in the electric field within the material. This is why materials with high dielectric constants are often used in capacitors.
Yes, when a dielectric material is placed in an external electric field, the induced dipoles within the material can cancel out the external field, resulting in a net electric field of zero within the material. This phenomenon is known as electric field shielding.