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A dielectric can be made a conductor by increasing its temperature, applying a strong electric field, or doping it with impurities, any of which can provide sufficient energy to its electrons, allowing them to overcome the insulating gap and move freely, thus conducting electricity.
b
Explanation: On increasing the temperature, the free electrons in an insulator can be
promoted from valence to conduction band. Gradually, it can act as a conductor through
heating process. This condition is called dielectric breakdown, wherein the insulator
loses its dielectric property and starts to conduct
b) Heating
Explanation: On increasing the temperature, the free electrons in an insulator can be promoted from valence to conduction band. Gradually, it can act as a conductor through heating process. This condition is called dielectric breakdown, wherein the insulator loses its dielectric property and starts to conduct.