❓ why
Why do some materials conduct electricity while others do not?
Quick Answer
Materials conduct electricity when they have electrons that can move freely through them. In insulators, electrons are tightly bound to atoms, so electric current cannot flow easily.
The Full Story
Electrical conductivity depends on how electrons are arranged in a material’s atoms and crystal structure. In metals such as copper and silver, electrons are delocalized and can move through the lattice with relatively little resistance. In insulators such as rubber or glass, electrons are held tightly, so current is blocked. Semiconductors like silicon sit in between, which is why they are so useful in electronics.
Key Facts
1.Copper and silver are excellent conductors
2.Rubber and glass are common electrical insulators
3.Silicon is a semiconductor used in most chips
YouTube Angle
Suggested video title for this topic:
"Why does copper carry current but rubber stops it?"
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