what is isuators and conductor with an example
Answers
Explanation:
a substance which can conduct or transfer electricity is called conductor and which can't is called insulator.
Conductors are the materials or substances which allow electricity to flow through them. They are able to conduct electricity because they allow electrons to flow inside them very easily. Conductors have this property of allowing the transition of heat or light from one source to another.
Metals, humans, earth, and animal bodies are all conductors. This is the reason we get electric shocks! The main reason is that being a good conductor, our human body allows a resistance-free path for the current to flow from wire to our body.
Conductors have free electrons on its surface which allows current to pass through. This is the reason why conductors are able to conduct electricity.
Examples of Conductors
Silver is the best conductor of electricity. However, it is costly and so, we don’t use silver in industries and transmission of electricity.
Copper, Brass, Steel, Gold, and Aluminium are good conductors of electricity. We use them mostly in electric circuits and systems in the form of wires.
Mercury is an excellent liquid conductor that finds use in many instruments.
Insulators
Insulators are the materials or substances which resist or don’t allow the current to flow through them. They are mostly solid in nature and are finding use in a variety of systems. They do not allow the flow of heat as well. The property which makes insulators different from conductors is its resistivity.
Wood, cloth, glass, mica, and quartz are some good examples of insulators. Insulators are also protectors as they give protection against heat, sound and of course passage of electricity. Insulators don’t have any free electrons and it is the main reason why they don’t conduct electricity.
Examples of Insulators
Glass is the best insulator as it has the highest resistivity.
Plastic is a good insulator and it finds its use in making a number of things.
Rubber is a common component in making tyres, fire-resistant clothes and slippers. This is because it is a very good insulator.