The rod or stem of a gold leaf electroscope is made of

Wood

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Brass

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Glass

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Ebonite

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Solution

The correct option is B Brass
Since charge gets transferred from the metal disk to the gold leaves through the metallic rod in a gold leaf electroscope. So, the rod has to be metallic to transfer the charge. Out of given options, wood, glass, rubber are insulators and therefore cannot be used. So, Brass is metal alloy and therefore used.

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The rod in a gold leaf electroscope is made up of :

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