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Q: What does not allow passage of electric charges through them?
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Which type of materials allow the charges of an electric current to move freely through them?

Conductors, such as metals.


Materials that allow the charges of an electric current to move freely through them are called what?

A materiel that allows an electric charge to pass through it is an conducter (copper, for example)


What is a non-conductive resistor?

non-conductive resistors are resistors made from materials which do not allow the passage or flow of electric current through them.


What is a material that doesn't allow charges to move through it easily?

Wood An insulator is a material that does not allow charges to move through it easily.


What are materials that allow electric charges to move easily?

I know that one is a Conductor


What is the Difference between dielectric and insulator?

The difference between dielectric and insulator lies in its field of application.Dielectrics are used to store the electric charges, while insulators are used to block the flow of electric charges ( they more or less act like a wall).While all dielectrics are insulators (they don't allow the flow of electric charges through them) all insulators aren't dielectric because they can't store charges unlike dielectrics.


Would an electric current be completed in NaCl solution?

yes, the charges of the dissolved ions in solution allow for electrons to be transfered through water. Completely pure water actually is a decent insulator of electric current


What material allows electric current to pass through?

Electric current flows in conducting materials such as metals. The best conductor of electric current is silver, followed closely by copper and then aluminium.


What are substances that allow electrical charges to pass through them?

Conductors


Contrast insulators and conductors?

Insulators do not allow electric current to flow through. Conductors allow electric current to flow through.


Materials that allow the charges of an current to move freely through them are called?

conductors


If a material does not allow charges to move through it easliy what is it called?

static electricity