Question

4. Which of the following applications of plastics shows that plastics are bad

conductors of electricity?

I. Refrigerators have an insulating wool of plastics.

II. Electric wires have a plastic coating.

III. Chemicals are stored in plastic containers.

IV. Parachutes are made from plastics.

a. II, III and IV only b. III and IV only

c. I only d. II only​

Answer 1

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Answer 2

Option d) II only. Electric wires have a plastic coating is an application of plastics that shows that plastics are bad conductors of electricity.

• A bad conductor does not allow electricity to go through it.
• Plastic is a synthetic polymer that does not allow electricity to go through it.
• They do not react in the presence of electric current.  
• This property helps in the handling of electric wires and protects the person from electric shock.
• This is why plastics are bad conductors and are sued in electric wires.