Maharashtra State PSC Model Paper 4

The correct answer is Plastics.

• Among the options, only 'plastics' is a bad conductor of electricity.
• Plastic is an insulator.

• The substance which does not allow the flow of current through them is called an insulator.
• Electrons do not move freely within the insulator.
• The electric field doesn’t exist in an insulator.
• Examples of insulators are:
  • Glass.
  • Dry wood.
  • Dry paper.
  • Mica.
  • Rubber.
  • Nylon.
  • Porcelain.