137
Question
Select the materials that cannot be charged by touching with a charged aluminium rod.
Select the materials that cannot be charged by touching with a charged aluminium rod.
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Solution
The correct option is D Rubber
Materials that are poor conductors of electricity are called insulators. In the process of charging by conduction where a charged object is used to charge an uncharged object, both the objects must be a good conductors of electricity.
Since aluminium is used as the charging object, insulators like ebonite and rubber cannot be charged by touching them with a aluminium rod.
Materials that are poor conductors of electricity are called insulators. In the process of charging by conduction where a charged object is used to charge an uncharged object, both the objects must be a good conductors of electricity.
Since aluminium is used as the charging object, insulators like ebonite and rubber cannot be charged by touching them with a aluminium rod.
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