Electrical Materials: Insulating and Dielectric Materials

Insulating materials are also termed as insulators or dielectrics.

Important applications of insulating materials include electric wiring in houses, overhead conductors in the street for distribution of electricity, and electric iron.

The functions of insulation mentioned in the text are to prevent the leakage current from one conductor to another or to earth, and to prevent the flow of electric current in the outer body of the electric iron.

<p>Almost all insulating materials have negative resistance temperature coefficient, i.e. their resistivity is reduced as the temperature increases.</p> Signup and view all the answers

<p>Examples of insulating materials mentioned in the text include plastic, insulating oil, air, mica, asbestos, glass, paper, and wood.</p> Signup and view all the answers