Insulators. They don't allow the flow of electrons, so a current cannot be produced in them. Non-metals (insulators) are anions and don't need a strong flow of electrons because they are more stable.
density
An insulator is a material that makes it difficult for electricity to pass through because it does not allow the flow of electric current. Insulators have high resistance to the flow of electrons, preventing electricity from easily moving through them. Examples of insulators include rubber, plastic, and glass.
The resistance to the flow of electricity is referred to as electrical resistance. It is a measure of how difficult it is for an electric current to pass through a material or component.
Electricity takes the path of least resistance. Conductivity of a material has a larger impact than density does.
Electricity can pass through conductive materials such as metals and water. Insulating materials such as rubber and plastic do not allow electricity to pass through them. The ability of a material to conduct electricity is determined by the movement of electrons within the material.
Resistance in the circuit makes it difficult for current to pass through.
A material that does not conduct (or allow the 'passage' of) electricity is called an "insulator".
copper :)
Electricity can pass through a wide verity of material that are conductive.
Electricity is unable to pass through them
Copper is a material that has low resistance. It is commonly used in electrical wiring due to its ability to efficiently conduct electricity with minimal resistance.
This is called a conductor.