# Base your answers to questions 4 and 5 on the informa- tion below A lightweight sphere hangs by an insulating thread. A student wishes to determine if the sphere is neutral or electrostatically charged. She has a negatively charged hard rubber rod and a positively charged glass rod. She does not touch the sphere with the rods, but runs tests by bringing them near the sphere one at a time. 4. Describe the test result that would prove that the sphere is neutral 5. Describe the test result that would prove that the sphere is positively charged.

If the sphere is positively charged, then the positive rod will be repelled by the sphere while the negative rod will be attracted to it. So, what exactly is an electrical charge? An electrical charge can either be positive or negative. As per the laws of electrostatics, opposite charges attract each other while similar charges repel each other. Hence, the reaction observed when the two rods are each brought close to the sphere will determine the type of charge on the sphere. If the sphere is neutral, there will be no visible reaction when either rod is brought close to it. However, if the sphere carries a positive charge, then the positive rod will be repelled by the sphere while the negative rod will be attracted to it. To gain more knowledge about electrostatics, visit brainly.com/question/9774180.