Question

A teacher place is a metal can on top of an insulating foam cap and touches the side of the foam cup with a negatively charged rod. What will happen to the negatively charged the electrons when the rod touches the foam cup?A. The electrons will transfer to the foam cup and will remain in a concentrated positively charged area on the cup, or the rod was placed.B. The electrons will transfer to the foam, and will remain concentrated negatively charged area on the cup, where the rod was placed.C. The electrons will transfer from the foam to the metal, causing both and can to have a positive charge.D. The electrons will transfer from the foam to the can causing both the cup and can have a negative charge.

Answer 1

B. The electrons will transfer to the foam and will remain in a concentrated negatively charged area on the cup, where the rod was placed.