Question

What is dielectric. Give any one example

Answer 1

Dielectrics are non-conducting substances having negligible number of charge carriers. In presence of an external electric field, dipole moments are induced in dielectrics by stretching and re-orienting the molecules of the dielectric. The collective dipole moment is the net charge on the surface of dielectric which opposes and reduces (does not cancel) the external field.

Some of the dielectric materials are:

• Porcelain (ceramic), mica, glass, plastics, and the oxides of various metals.
• Some liquids and gases
• Dry air
• Distilled water
• Vacuum

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Answer 2

Answer The non conducting substance or material is called dielectric

Explanation: