Which of the following are conductors and which are insulators ? Sulphur, Silver, Copper, Cotton, Aluminium, Air, Nichrome, Graphite, Paper, Porcelain, Mercury,Mica, Bakelite, Polythene, Manganin.

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Solution : 

Conductor:- Silver, Copper, Aluminum, Nichrome, Graphite, Mercury, Manganin Insulators:- Sulphur, Cotton, Air, Paper, Porcelain, Mica, Bakelite, Polythene

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