Iron(II) sulfide or ferrous sulfide (Br.E. sulphide) is a chemical compound with the formula FeS. In the oil/gas industry, iron sulfides are often present in a sour system due to reaction between corrosion products and hydrogen sulfide.
A material that conducts (see conduction) electricity poorly or not at all. If a voltage is applied to a dielectric, the atoms in the material arrange themselves in such a way as to oppose the flow of electric current. Glass, wood, and plastic are common dielectrics. (See insulator.)
Rating Newest Oldest. Best Answer: A dielectric is a medium that does not usually conduct electricity well. If the voltage across such a dielectric medium is sufficiently large, dielectric breakdown can occur.The structure of the dielectric medium is changed such that the current can flow and, consequently, the dielectric medium ceases to be 'dielectric'. The medium becomes permanently damaged.ating Newest Oldest. Best Answer: A dielectric is a medium that does not usually conduct electricity well. If the voltage across such a dielectric medium is sufficiently large, dielectric breakdown can occur.