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Question
When a glass rod rubbed with silk is brought near a charged plastic straw rubbed with polythene there is an attraction between the two. Identify the charge on the plastic straw.
When a glass rod rubbed with silk is brought near a charged plastic straw rubbed with polythene there is an attraction between the two. Identify the charge on the plastic straw.
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Solution
The correct option is B Negative
The charge acquired by a glass rod when it is rubbed with silk is positive.
Like charges repel and unlike charges attract. The straw gets attracted to the glass rod, which necessarily means that the plastic straw acquired negative charge.
Negative
The charge acquired by a glass rod when it is rubbed with silk is positive.
Like charges repel and unlike charges attract. The straw gets attracted to the glass rod, which necessarily means that the plastic straw acquired negative charge.
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