Electrostatic Charge Transfer between Rubber Cylinder and Wool
When a rubber cylinder is rubbed with a piece of wool, the cylinder accumulates a negative charge. what can be said about the charge on the wool? why?
When a rubber cylinder is rubbed with a piece of wool, the cylinder accumulates a negative charge. The charge on the wool would be positive. This occurs as both the rubber and wool exhibit the triboelectric effect. When two materials rub against each other, electrons are transferred from one to another, causing one material to become positively charged while the other becomes negatively charged.
Explanation: The transfer of charge can be explained by Coulomb's law, which states that like charges repel each other, while opposite charges attract each other. The charges on the wool and rubber cylinder will cause them to attract each other, since they have opposite charges. Certain materials, such as wool and rubber, have a greater ability to hold on to electrons, which means that they will accumulate more electrons and become negatively charged. As a result, the rubber cylinder acquires a negative charge when it is rubbed with wool, while the wool acquires a positive charge.
Why does wool acquire a positive charge? Wool has a higher tendency to lose electrons, causing it to become positively charged. This phenomenon is due to the triboelectric effect, where the transfer of electrons between materials results in one material gaining electrons and becoming negatively charged, while the other loses electrons and becomes positively charged.
When the rubber cylinder and wool accumulate opposite charges, how do they interact with each other according to Coulomb's law?
According to Coulomb's law, the charges on the rubber cylinder and wool will attract each other due to their opposite charges. Like charges repel each other, while opposite charges attract each other. This attraction between the positive charge on the wool and the negative charge on the rubber cylinder is a result of the electrostatic forces between them.