Is it true that if a charged plastic straw is brought near the uncharged plastic straw, they repel each other?

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True

False

answer is B.

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Detailed Solution

The above statement is False.
They attract each other if a charged plastic straw is brought near the uncharged straw. When a plastic straw is charged, the charges are accumulated on the surface. An uncharged plastic straw might not have any charge around it. But when it is brought in close contact with a charged one, the charges are produced. We know that unlike charges attract each other, whereas like-charges repel each other. They attract because charges of different kinds are present there.
The corrected statement would be, if a charged plastic straw is brought near the uncharged straw, they attract each other.

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