Your question: Which of the following materials is an electrical insulator?

Out of the given options, we know that aluminium and gold are metals whereas rubber is a non-metal. Therefore, we can conclude that rubber is the electric insulator among the given options. Hence, the correct answer is option C.

What materials are good electrical insulators?

Plastic, wood, glass and rubber are good electrical insulators. That is why they are used to cover materials that carry electricity. The plastic covering that surrounds wires is an electrical insulator.

What materials are insulators?

A material that does not let heat and electricity travel through it easily is known as an insulator. … Plastic, rubber, wood, and ceramics are good insulators. These are often used to make kitchen utensils, such as saucepan handles, to stop heat from flowing up to burn the cook’s hand.

What does an electrical insulator do?

Electrical insulators are used to hold conductors in position, separating them from one another and from surrounding structures. They form a barrier between energized parts of an electric circuit and confine the flow of current to wires or other conducting paths as desired.

What is insulator and types of insulator?

Insulators consist of different types of insulator materials like plastic, rubber, mica, wood, glass, etc. In the electrical system, specific insulating materials are used like porcelain, glass, steatite, polymer, ceramic, PVC.

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What is electrical insulator examples?

Some common insulator materials are glass, plastic, rubber, air, and wood. Insulators are used to protect us from the dangerous effects of electricity flowing through conductors. Sometimes the voltage in an electrical circuit can be quite high and dangerous.

What are 3/4 examples of insulators?


  • glass.
  • rubber.
  • oil.
  • asphalt.
  • fiberglass.
  • porcelain.
  • ceramic.
  • quartz.

What is the best insulator of electricity?

The most effective electrical insulators are:

  • Rubber.
  • Glass.
  • Pure water.
  • Oil.
  • Air.
  • Diamond.
  • Dry wood.
  • Dry cotton.

What are 4 types of insulators?

There are 5 types of insulators used in transmission lines as overhead insulation:

  • Pin Insulator.
  • Suspension Insulator.
  • Strain Insulator.
  • Stay Insulator.
  • Shackle Insulator.

How many types of electrical insulators are there?

The five types of insulators are: Suspension insulators. Pin insulators. Strain Insulators.

What is insulator string?

Insulator strings are consist of dish insulators made of insulating materials such as glass, porcelain, or polymer. … When an electrical insulator is needed for high voltage transmission lines, there must be an insulator string. The more disc insulators used in a string insulator, the higher voltage it can bear.