Question
A student touches a rubber ball with a negatively charged plastic rod. How will the negative charges be distributed on the ball?
Evenly distributed on the ball's inside
On the ball's surface where the rod touches the ball
Evenly distributed on the ball's surface
On the bottom of the ball's surface
Evenly distributed on the ball's inside
On the ball's surface where the rod touches the ball
Evenly distributed on the ball's surface
On the bottom of the ball's surface
Answers
GPT-4o mini
When a negatively charged plastic rod touches a rubber ball, the excess negative charges (electrons) from the rod will transfer to the ball. This transfer occurs because like charges repel and opposite charges attract.
Since the rubber ball is an insulator, the negative charges will not move freely throughout the ball, but once they accumulate, they will distribute themselves to minimize repulsion among like charges. In this case, the negative charges will spread out to the surface of the ball.
Thus, the correct answer is: **Evenly distributed on the ball's surface.**
Since the rubber ball is an insulator, the negative charges will not move freely throughout the ball, but once they accumulate, they will distribute themselves to minimize repulsion among like charges. In this case, the negative charges will spread out to the surface of the ball.
Thus, the correct answer is: **Evenly distributed on the ball's surface.**