A glass marble is rubbed against a piece of silk as a result the piece of fabric

Question

A glass marble is rubbed against a piece of silk as a result the piece of fabric acquires extra electrons. What happens to the glass marble? Check all that apply. The marble has lost the same number of electrons acquired by the piece of silk the marble has acquired the same number of electrons acquired by the piece of silk the marble acquires a positive charge and repels the piece of silk. The marble acquires a positive charge and attracts the piece of silk the marble acquires a negative charge and attracts the piece of silk. The marble acquires a negative charge and repels the piece of silk.

Explanation / Answer

By Using charge conservation ,the no.of electrons gained by fabric = no.of electrons lost by marble

the body which gains electrons will get negative charge due to excess electrons and the body which looses electrons will gain positive charge due to deficient of electrons

So the answer is
The marble has lost the same number of electrons acquired by the piece of silk

The marble acquires a positive charge and attracts the piece of silk

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