Gagan Mishra
Class 12th
Physics
2 years ago
Which of the following sets are the best insulators?
A) Rubber, glass, plastics, ebonite, cotton, copperB) Bakelite, dry air, paper, ebonite, aluminiumC) Plastics, ebonite, paper, cotton, Bakelite, dry air, rubberD) Silver, copper, gold, iron