Metal is used to make wires because of the good conduction properties of electricity. It has a minimum loss of energy when the electricity is passed through the good conductor. Metals are ductile and malleable which is drawn into thin without breaking.
Why electric wires are made up of metals?
A conductor is a material in which electricity can flow through. Electrical conductors are made up of metals such as, copper, aluminum, etc. … Most wires are made out of copper because it conducts electricity with high flexibility and very little resistance.
Why are electrical wires made up of metals Brainly?
Answer: The lower the level of resistivity, the more electrical conductivity a metal has. Copper has low resistivity, and therefore is an excellent conductor.
Why are electric wires covered with plastic Class 6?
Electrical wiring is usually covered with layer of plastic to make it safe. As we know that plastic is an electrical insulator and it is readily available and cheap. So as to insulate the electricity carrying wire, to make it shock free.
Why are electric wires covered with plastic?
Covering electrical wiring using plastic ensures that the current doesn’t flow outside the system. … Plastics are non-reactive and poor conductors of electricity or to be precise, they are insulators. They do not allow the electric current to pass through them easily.
Which is the best conductor of heat?
Metals That Conduct Heat the Best
- Silver. Silver is one of the best metals for conducting heat because it works as a powerful reflector. …
- Copper. Copper is yet another good conductor of heat because it absorbs heat quickly and holds it for a long period of time. …
- Aluminum. …
Why electric wires are made up of copper?
Why is copper used for most electrical wiring? … The lower the level of resistivity, the more electrical conductivity a metal has. Copper has low resistivity, and therefore is an excellent conductor. Copper is also less oxidative than other metals.
What are the different sizes of electrical wires?
The most common sizes you’ll find in residential work are 14-gauge and 12-gauge. Larger appliances such as electric stoves, electric water heaters, electric dryers and central air units will often use 10-, 8- or even 6-gauge wire.
Why are electric wires coated with plastic Class 10?
Reason for the usage of plastic in electric wire:
It is a good insulator where it prevents the flow of electron to the body. It dissipates the heat rapidly. It has good flexibility and easy to bend. It also prevents from fire accidents.
What are electric wires covered with plastic?
The electrical wires are covered with plastic coverings because the plastic is an insulator and thus it protects us from getting shocks.