a student is investigating the distribution of charges in insulators. the student will place an aluminum metal can on top of a foam cu and touch the side of the foam cup with a negatively charged rod. the set up for the investigation is shown in the diagram.
what will most likely happen to the electrons when the rod touches the foam cup?
When the rod touches the foam cup, the negatively charged rod will transfer some of its electrons to the foam cup. This is because electrons, being negatively charged, repel each other. So, when the negatively charged rod touches the foam cup, some of the excess electrons on the rod will transfer to the foam cup, neutralizing part of the negative charge on the rod and generating more negative charge on the foam cup.
