Electrical wires have a coating of an insulating material. The material, generally used is
  1. Sulphur
  2. Graphite
  3. PVC
  4. All can be used

AcademicChemistryNCERTClass 10

Correct Answer: (c) PVC 

Explanation: Insulators are material that does not allow the flow of electric current.

PVC is an abbreviated form of polyvinyl chloride. The electrical characteristics of PVC such as electrical insulating properties or dielectric constant are excellent and hence, are used as insulating materials.

Updated on 10-Oct-2022 13:27:24