Which of the following are conductors and insulator ?
Silver ,copper ,aluminium,cotton, air, nichrome, graphite, paper, porcelain, Mercury, mica, bakelite, polythene, menganin
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Explanation:
cotton, air,paper,Mercury, mica,polythene and menganin
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Here are the answers
Explanation:
Conductors :
- Silver
- Copper
- Aluminium
- Mercury
- Nichrome
- Graphite
Insulators
- Polythene - Plastic is an electrical insulator, but not a very good heat insulator (unless foamed). However, it's not a very good heat conductor either.
- Bakelite
- Cotton
- Air
- Paper
Not sure about the following:
- Menganin
- Mica - mica is unusual in that it is a good electrical insulator at the same time as being a good thermal conductor.
- Procelain -porcelain have traditionally been made into electric insulators. Some ceramics, however, are excellent conductors of electricity.
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