For an electrically charged object to repel another object, what must happen.

Answer: If two electrically charged objects repel one another, that means, the two objects have the same electric charge. The opposite charges attracts each other while same charges repel each other. If there is one positive and one negative charge particle, they will attract each other. While If there are two positive charges or two negative ...

epulsion and attraction

Two charged objects will: repel each other if they have like charges (they are both positive or both negative) attract each other if they have opposite charges (one is positive and the other is negative)