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Differentiate, with examples, between an electrical insulator and an electrical conductor. - Leaving Cert Engineering - Question f - 2011
Question f
Differentiate, with examples, between an electrical insulator and an electrical conductor.
Worked Solution & Example Answer:Differentiate, with examples, between an electrical insulator and an electrical conductor. - Leaving Cert Engineering - Question f - 2011
Step 1
Electrical Insulators
Answer
Electrical insulators are materials that prevent the flow of electric current. They resist the movement of electrons within them, thus inhibiting current from passing. Common examples include materials like PVC (polyvinyl chloride), which is widely used in electrical cabling to safely encase conductive wires and prevent accidental electrical shocks.
Step 2
Electrical Conductors
Answer
In contrast, electrical conductors are materials that allow the flow of electric current to pass through them with ease. They have free electrons that facilitate the transfer of electricity. Examples of good conductors include metals such as aluminum and copper, which are commonly used in electrical wiring due to their high conductivity.