Physics
Grade-6
Easy
Question
Electric wires are mostly made up of _____
- Aluminum
- Copper
- Steel
- Plastic
Hint:
Metals are good conductor of electricity
The correct answer is: Copper
- Copper is a good conductor of electricity
- Copper is used for electrical wiring because it is a good conductor of electricity. The free electrons in metals can move through the metal, allowing metals to conduct electricity.
- Although Aluminum is also a metal but aluminum wiring is not as strong as copper wiring, and it has a higher thermal expansion coefficient.
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