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Question
Differentiate between Conductors and insulators.
Solution
| Conductors | Insulators |
|
Those substances through which electricity can flow are called conductors. |
Those substances through which electricity cannot flow are called insulators. |
| Electrical resistances of conductors are very low. | Electrical resistances of insulators are infinitely very high. |
|
They contain a large number of free electrons. |
They do not contain free electrons. |
|
Generally, metals are conductors. E.g. silver, copper, aluminium |
Generally non – metals are insulators. E.g. wood, rubber, plastic |
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