If two electrically neutral materials A and B are rubbed together and A gets positively charged, it means:

A has lost some electrons to B.

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A has gained some electrons from B.

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A has gained some protons from B.

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A has lost some protons to B.

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Solution

The correct option is A A has lost some electrons to B.
If a material has become positively charged, it means it has a deficiency of electrons because of losing some electrons to another material. The other material, on the other hand, becomes equally negatively charged because it has gained the same number of electrons from the former.
In this case, since A has become positively charged, it lost some electrons to B during the rubbing.

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Similar questions

When a plastic comb is rubbed with dry hair, the hair get positively charged by friction. In this process:

(a) the hair lose some positive protons

(b) the hair gain some positive protons

(d) the hair gain some negative electrons

When an object gets negatively charged by the process of friction, then:

(a) the object loses some electrons (b) the object loses some protons

State True or False :

A positively charged object has gained proton.

Question 110 (iii)

Science Application An atom consists of charged particles called electrons and protons. Each proton has a charge of +1 and each electron has a charge -1. Remember the number of electrons is equal to the number of protons, while answering this question :
What will be the charge on an atom, if it gains an electron?

Q. A neutral lithium atom has three protons, three electrons and some neutrons (depending on the isotope). The modulus of energy of an electron in the 2nd orbit of a

L i^{+ +}

ion is___ eV.

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