Guide Questions: What material is used on the inner part of the wire? 2. What material is used for the outer part of the wire? 3. Why is copper commonly used in our electrical wirings? What do you think will happen if there is no plastic or rubber that covers the wire?
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Answer:
1. CABLE CONDUCTOR
This is where the electrical current is actually transmitted, with copper being the most commonly used material. In some cases, aluminium conductors are also used, despite the fact that this metal is 60% worse conductor than copper (at the same cross-section it has more losses due to the Joule effect)
2.Surpassed only by silver, copper is a highly conductive metal. This means electricity can pass through it with greater ease, making it ideal for use in electrical wires. Companies can use other conductive metals to create electrical wires.
3.The conductor consists of 7 strands of steel (centre, high tensile strength), surrounded by 4 outer layers of aluminium (high conductivity
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