An inflated balloon is rubbed with a woollen cloth and then, a ballpen refill is rubbed with polythene. When the balloon and the ballpen refill are brought close to each other, it is observed that they attract each other. What can be concluded from this?

Both acquired same kind of charge

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They acquired different kinds of charges

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One of the object is not charged

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Both the objects are not charged.

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Solution

The correct option is B
They acquired different kinds of charges

Objects acquire charges when they are rubbed against another object. Also, like charges repel and unlike charges attract each other. In the above experiment, the balloon has acquired a kind of charge that is opposite to the charge acquired by the ballpen refill. As the unlike charges attract each other, the balloon and the refill developed a force of attraction with each other.

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Similar questions

An inflated balloon is rubbed with woollen cloth and in another case, a ballpen refill is rubbed with polythene. When they were brought close, it is observed that they attract each other. What can we understand by this?

An inflated balloon is rubbed with a woollen cloth and in another case, a ballpen refill is rubbed with polythene. When they are brought closer, it is observed that they attract each other. Which of the following conclusions can be made from this?

Two inflated balloons are rubbed with a woollen cloth and are brought close to each other. If they repel each other, then it explains that the nature of charge on one balloon is opposite from the other.

Q. A glass rod and a plastic straw, both are rubbed with a polythene sheet and brought to each other. Attraction is observed. What kind of charge is acquired on the plastic straw?

Fill the following table.

" $\begin{matrix} O b j e c t s r u b b e d & M a t e r i a l u s e d f o r r u b b i n g & A t t r a c t s / d o e s n o t a t t r a c t p i e c e s o f p a p e r & C h a r g e d / n o t c h a r g e d R e f i l l & p o l y t h e n e, w o o l l e n c l o t h B a l l o o n & p o l y t h e n e, w o o l l e n c l o t h, d r y h a i r E r a s e r & w o o l S t e e l s p o o n & p o l y t h e n e, w o o l e n c l o t h \end{matrix}$ "

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