Electrical conductors

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Electricity travels easily through electrical conductors, like metals.

Materials that do not let electricity pass through them easily are called electrical insulators. Plastic, wood, glass and rubber are good electrical insulators.

Some materials let electricity pass through them easily. These materials are known as electrical conductors.

Many metals, such as copper, iron and steel, are good electrical conductors. That is why the parts of electrical objects that need to let electricity pass through…

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