Explain the behaviour of dielectrics in an external field?
Question: Explain the behaviour of dielectrics in an external field?
When a dielectric material is placed in an external electric field, the material experiences a polarization effect due to the alignment of the electric dipoles within the material. The electric field causes the electrons within the dielectric material to shift from their original positions, creating a temporary dipole moment. This polarization effect produces an internal electric field, which opposes the external electric field, leading to a reduction in the net electric field. The degree of polarization depends on the dielectric constant of the material and the strength of the external electric field. This behavior of dielectrics in an external field is utilized in various applications, such as capacitors and insulators.
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