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Explanation:
Conductors conduct electrical current very easily because of their free electrons. Insulators oppose electrical current and make poor conductors. Some common conductors are copper, aluminum, gold, and silver. Some common insulators are glass, air, plastic, rubber, and wood.
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Explanation:
- it bends away from the normal.
- it bends towards the normal
- two conductors iron and copper
- mica and glass
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