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Covalent bonds, free electrons, etc.
Materials with strong covalent bonds do not readily share electrons and thus have very little electron movement or resistance. We need, to our understanding, electron movement in order to conduct electricity effectively at normal temperatures. We aren't talking superconductors here.
Free electrons in a material such as copper allow a low resistance to electrical flow.
There is also a consideration as to the number of shells of an element and the resultant attraction between the nucleus and the electrons in the outer shell, i.e., the more electrons an element has the more shells and the further away those free electrons are from the nucleus.
Copper and iron have four shells with one electron in the outer shell...good.
Silver has five shells with one electron in the outer shell...better.
Gold and platinum have six shells with one electron in the outer shell...best.
Tungsten has six shells, two electrons in the outershell...notable resistance.
Lead has six shells, but four electrons in the outer shell...getting more resistive.
There are many other examples for each type of metal.
What else can I help you with?
Why do certain materials have electric resistance?
Certain materials have electric resistance due to the collisions between the electrons and atoms within the material, which hinders the flow of electric current. The resistance is caused by factors such as the type of material, temperature, and impurities present in the material.
Do all conductors have resistance?
Yes, all conductors have resistance to some degree. Resistance is a property of materials that impedes the flow of electric current. However, some materials have lower resistance (e.g., copper) while others have higher resistance (e.g., rubber).
What material has high resistance to the flow of electric current?
The material that has high resistance to the flow of electric current is called an insulator. Examples of insulating materials include rubber, glass, and plastic.
Does plastic have low resistance?
Plastic is an insulator, meaning it has high resistance to the flow of electric current compared to conductive materials like metals.
Materials that do not allow electric changes?
Materials that do not allow electric charges to flow freely are called insulators. Examples of insulating materials include rubber, glass, wood, and plastic. Insulators have high resistance to the flow of electricity, making them useful for protecting against electric shocks and preventing short circuits.
Why do certain materials have electric resistance?
Certain materials have electric resistance due to the collisions between the electrons and atoms within the material, which hinders the flow of electric current. The resistance is caused by factors such as the type of material, temperature, and impurities present in the material.
Do all conductors have resistance?
Yes, all conductors have resistance to some degree. Resistance is a property of materials that impedes the flow of electric current. However, some materials have lower resistance (e.g., copper) while others have higher resistance (e.g., rubber).
What material has high resistance to the flow of electric current?
The material that has high resistance to the flow of electric current is called an insulator. Examples of insulating materials include rubber, glass, and plastic.
Does plastic have low resistance?
Plastic is an insulator, meaning it has high resistance to the flow of electric current compared to conductive materials like metals.
Materials that do not allow electric changes?
Materials that do not allow electric charges to flow freely are called insulators. Examples of insulating materials include rubber, glass, wood, and plastic. Insulators have high resistance to the flow of electricity, making them useful for protecting against electric shocks and preventing short circuits.
Why are resistance materials used in toasters?
Because the main purpose of a toaster is to radiate heat. In order to generate heat from electric current, resistance is required in the circuit.
What opposes the flow of an electric currents?
Resistance in OMS: In alternating current is is measured in impedance.
What material has low resistance?
Materials such as copper, silver, and gold have low resistance to electric current flow. These materials are commonly used in electrical wiring and connections due to their ability to conduct electricity with minimal loss of energy.
What is the tendency of a substance to resist the flow of electrons?
That tendency is known as electrical resistance. It is a measure of how difficult it is for an electric current to pass through a substance. Materials with high resistance impede the flow of electrons, while materials with low resistance allow electrons to flow more easily.
Good conductors have a high resistance or low?
Good conductors have low resistance. A low resistance allows for the easy flow of electric current through the material. Materials like metals are good conductors because they have many free electrons that can move easily in response to an electric field.
Does Insulators offer resistance to the flow of electric current?
Yes, insulators offer resistance to the flow of electric current. Insulators are materials with high resistance, which restricts the flow of electrons through them. This property makes insulators useful for preventing electrical leakage and ensuring the safe transmission of electricity.
How does the type of the material affect its resistance?
The type of material affects resistance because different materials have different properties that impact their ability to conduct electricity. Materials with high electrical conductivity, such as metals, have low resistance, while insulating materials like rubber have high resistance. This is due to the relationship between the material's atomic structure and how easily electric currents can flow through it.
