When two charged objects repels each other what kind of charges acquired by the both objects?

Q. Two objects rubbed against each other acquire charge.
a. What is the relationship between the charges acquired by the two objects?
b. What action does rubbing cause, because of which the objects acquire charge?

Q. The objects which acquires small electric charges, when rubbed with each other, are called:

Q.

Question 4

Two charged objects are brought close to each other. What kind of interaction can be observed?

Q. If two bodies repel each other, we can say that both of them carry charges.

Q. When two charged objects attract each other, the objects carry: