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What are the two examples of electrical materials that are insulators?
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What are two materials that act as good insulators?
-- air -- cloth
Name two other materials that are poor conductors of electricity and might make good insulators?
plastic, glass and rubber
Give two examples of an insulator?
First of all, an insulator is something that electrons/electricity cannot flow through.So, here are some examples of insulators:- Paper- Plastic- Wood- Cloth- Glass- etc.
What are two kind of insulators?
Copper and a Styrofoam
What is the principle of direct current?
ANSWERDirect current (DC) is the function of having a constantdifference in potential at opposite ends of an electrical circuit. An electrical circuit is any configuration that allows electrical current to flow across any point within the circuit.There is a phenomenon known as Galvanic Action. This occurs when a pair of conductors made from different materials makes contact. At the point of contact, the junction, there is a minuscule difference in potential between the two different materials. These potential differences are measured in micro-volts. These potential differences exist because every material, at rest, has a particular energy level unique to that material. Since there is a difference in energy level between any two materials, there exists an electrical potential difference between them as well.Only in conductors can electrical current flow freely. Electrical current flow is electron flow between atoms in a conductive material. Any material will conduct electricity given a high enough potential difference across the material. Gold, Silver, and Copper, are three examples of high conductivity materials, or good conductors. It takes a minuscule difference in potential to get electron flow within these materials. Plastic, glass, and porcelain are three examples of no conductivity materials, or good insulators. It takes an excessive difference in potential to break these materials down in order to get electron flow within these materials.Plastic is a relatively good insulator because it takes a considerable amount of potential difference (voltage) across the material to get electron flow within the material. This makes plastic a good insulator and this is why it is found in many electrical circuits. Porcelain is an insulator used in high voltage circuits. These are the long suspension devices used to hang high tension power cables you see on towers that deliver power between cities.I hope this makes some sense. This explanation could go on for a very long time.
Name 2 insulators?
Insulators are materials or substances that do not readily allow the passage of sound or heat. Two examples of insulators are glass and porcelain.
What are two examples of good insulators?
Conductors are materials that will allow electricity to flow through them. Materials that contain 1, 2, or 3 valence electrons are good conductors. Some examples of good conductors are gold, silver, aluminum, and copper. Insulators are materials, or combinations of materials, with a high number of valence electrons (5, 6, 7, and 8). Examples of good insulators are porcelain, glass, air, and rubber.
What materials are effective insulators?
I know glass and plastic are two...
What are two materials that act as good insulators?
-- air -- cloth
A good electrical insulator?
Two good Insulators are foam and styrafoam
What are some heat insulators?
Some heat insulators are fiberglass, polyurethane foam, and polystyrene. Two other thermal insulators used as insulating materials in building construction are mineral wool and cellular glass.
What two properties of metal makes it suitable for over head cables?
Metalloids and non-metals make it useful for electrical-------------------------------------------------------------------------Metals are used in wiring to transfer the electrical energy around your home and non-metalic materials i.e plastics are used as insulators.
Uses of insulators?
The two main uses of insulators are (a) to prevent short-circuits if two cabled touch, and (b) minimise cross-talk between data cables.
Name two other materials that are poor conductors of electricity and might make good insulators?
plastic, glass and rubber
The mica family of minerals possesses the two types of chemical bonds present in graphite. What are these two bond types and why are sheets of mica commonly used in electrical insulators?
families and cousins
What insulator useful for if conductor are used to direct electricity around circuit?
Insulators are very poor conductors of heat and electricity. Coating wires with insulators help reduce electrical disturbance between two conducting wires arranged closely. Insulators also greatly reduce of someone getting shocked if the conducting wires are left as it is.
Is wood and plastic an thermal insulator?
No. Wood and plastic are two materials, not one.They can be insulators, or a composite made from wood and plastic could be an insulator but THEY cannot be ANinsulator.
