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Maharashtra State BoardSSC (English Medium) 10th Standard

Differentiate between conductors and insulators. - Science and Technology 1

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Question

Differentiate between conductors and insulators.

Distinguish Between
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Solution

Sr. No. Conductors Insulators
1. Those substances through which electricity can flow are called conductors. Those substances through which electricity cannot flow are called insulators.
2. Electrical resistances of conductors are very low. Electrical resistances of insulators are infinitely very high.
3. They contain a large number of free electrons. They do not contain free electrons.
4. Generally, metals are conductors. E.g., silver, copper, aluminium. Generally, non-metals are insulators. E.g., wood, rubber, plastic.
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2014-2015 (July)

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