Question

During a physics lab, a plastic strip was rubbed with cotton and became positively charged. The correct explanation for why the plastic strip becomes positively charged is that (A) the plastic strip acquired electrons from the cotton: (B) the plastic strip acquired extra protons during the charging process
(C) protons were created as the result of the charging process
(D) the plastic strip lost electrons to the cotton during the charging process.

Answer 1

The plastic strip becomes positively charged is because A) the plastic strip acquired extra protons during the charging process from the cotton. So, correct option is A.

Every object is made up of equal number of electrons and protons. Since charges are neutral because of equality, that is the reason behind every object is stable in this universe.

On rubbing with cotton cloth, a plastic strip acquired positive charge. Since, plastic strip is composed of electrons and cotton cloth is composed of positive protons. When we rubbed both of objects, because of opposite charge both of the charges cancelled each other.

Now, only positive charge of plastic strip remains and positive charge of cotton cloth remains. So, we know very well that like charges repel each other.

Therefore, at last plastic strips contains only positive charge and that is the reason of becoming positively charged after rubbing.

Hence, correct option is A.

To know more about charges, visit here:

brainly.com/question/19886264

#SPJ4