Electrical wires have a coating of an insulating material. The material, generally used is

(A) Sulphur

(B) Graphite


(D) All can be used



Metal wires usually have a coating of PVC .

PVC is a non-metal that provides protection against electrical current. 

So, the correct answer is (c) PVC

  1. Class 10
  2. Chapter 3 Class 10 - Metals and Non-Metals (Term 1)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo