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Question

A charged glass rod attracts a charged plastic straw.


A
True
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B
False
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Solution

The correct option is A True
  1. A charged plastic straw has a negative charge on its surface while a glass rod has a positive charge on its surface.
  2. Because When a plastic straw is rubbed with say polythene, plastic becomes negatively charged due to excess electrons.
  3. Similarly, When a glass rod is rubbed with say polythene, the glass rod becomes positively charged due to a lack of electrons.
  4. Unlike charges attract each other, so a positively charged glass rod attracts a negatively charged plastic straw

Hence, the given statement is true.


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