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Question
A gold-leaf electroscope is to be charged positively by conduction. For this
Options
a positively charged rod is held close to near the disc of electroscope
a positively charged rod is placed in contact with the disc of electroscope
a negatively charged rod is held near the disc of electroscope
a negatively charged rod is touched with the disc of electroscope.
Solution
a positively charged rod is placed in contact with the disc of electroscope
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