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Q.

Take a balloon, Inflate it and tie up the open end and now cut a paper into small pieces and place them on the floor. Rub the balloon with a paper and bring the balloon near the pieces of papers. We observe

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a

The paper pieces rise and cling to the balloon

b

As the balloon is rubbed with paper it acquires an electrostatic charge on its surface

c

Balloon attracts the uncharged paper pieces as they acquire opposite charge

d

All are true

answer is D.

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Detailed Solution

We can say that when the balloon is rubbed with a paper it acquires an electrostatic charge on its surface. The force exerted by a charged body on another charged body is know as electro static force.

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