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Which of the following sets are the best insulators ?
  • a)
    Rubber, glass, plastics, ebonite, cotton, copper
  • b)
    Silver, copper, gold, iron
  • c)
    Bakelite, dry air, paper, ebonite, aluminium
  • d)
    plastics, ebonite, paper, cotton, Bakelite, dry air, rubber
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Which of the following sets are the best insulators ?a)Rubber, glass,...
The Correct Answer is plastics, ebonite, paper, cotton, Bakelite, dry air, rubber.
Key-Points
  • An insulator is a material that does not conduct electrical current.
  • The vacuum is also an insulator but is not actually material.
  • Most electrical conductors are covered by insulation.
  • Magnet wire is coated with an extremely thin layer of insulation so that more turns or larger wire may be used in the winding of transformers.
  • The insulator is a material in which the electron does not flow freely.
  • The atom of the insulator has tightly bound electrons.
  • Examples of insulators include plastics, paper, rubber, glass and bakelite.
Additional Information
  • The Conductor is the opposite of the Insulator.
  • A Conductor is an object that allows the free flow of charge.
  • Examples of Insulators include silver, copper, gold, aluminum, iron.
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Most Upvoted Answer
Which of the following sets are the best insulators ?a)Rubber, glass,...
Best Insulators

plastics, ebonite, paper, cotton, Bakelite, dry air, rubber
Insulators are materials that do not conduct electricity well, making them ideal for insulating or protecting against electric currents. The best insulators have high resistivity, which means they offer high resistance to the flow of electricity. Among the options given, the set of materials in option D - plastics, ebonite, paper, cotton, Bakelite, dry air, and rubber - are the best insulators for various reasons.

Plastics and Rubber
- Plastics and rubber are commonly used insulating materials due to their high resistivity and non-conductive properties.
- They are versatile and can be easily molded into different shapes for various applications.

Ebonite and Bakelite
- Ebonite and Bakelite are synthetic materials known for their excellent insulating properties.
- They are often used in electrical equipment and wiring to prevent the flow of electric current.

Paper and Cotton
- Paper and cotton are natural insulating materials that offer good resistance to electricity.
- They are commonly used in electrical insulation, such as in transformer windings.

Dry Air
- Dry air is a good insulator due to its low conductivity.
- It is often used in high-voltage applications to prevent electrical discharge.
In conclusion, the set of materials including plastics, ebonite, paper, cotton, Bakelite, dry air, and rubber are the best insulators among the options provided. These materials offer high resistivity and non-conductive properties, making them ideal for various electrical insulation applications.
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Which of the following sets are the best insulators ?a)Rubber, glass, plastics, ebonite, cotton, copperb)Silver, copper, gold, ironc)Bakelite, dry air, paper, ebonite, aluminiumd)plastics, ebonite, paper, cotton, Bakelite, dry air, rubberCorrect answer is option 'D'. Can you explain this answer?
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Which of the following sets are the best insulators ?a)Rubber, glass, plastics, ebonite, cotton, copperb)Silver, copper, gold, ironc)Bakelite, dry air, paper, ebonite, aluminiumd)plastics, ebonite, paper, cotton, Bakelite, dry air, rubberCorrect answer is option 'D'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following sets are the best insulators ?a)Rubber, glass, plastics, ebonite, cotton, copperb)Silver, copper, gold, ironc)Bakelite, dry air, paper, ebonite, aluminiumd)plastics, ebonite, paper, cotton, Bakelite, dry air, rubberCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following sets are the best insulators ?a)Rubber, glass, plastics, ebonite, cotton, copperb)Silver, copper, gold, ironc)Bakelite, dry air, paper, ebonite, aluminiumd)plastics, ebonite, paper, cotton, Bakelite, dry air, rubberCorrect answer is option 'D'. Can you explain this answer?.
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