When two objects are rubbed together, electrons from one object can transfer to the other object, creating an imbalance of positive and negative charges. This results in one object becoming positively charged and the other becoming negatively charged.
The type of material can affect the amount of charge generated because some materials have a stronger affinity for electrons than others. Materials with a higher affinity for electrons will gain a larger amount of charge when rubbed, while materials with a lower affinity will gain a smaller amount of charge.
Yes, objects with the same charge will repel each other. This is because like charges repel, meaning that two positively charged objects or two negatively charged objects will push away from each other.
The amount of charge on an object can be measured using an instrument called an electroscope. This device detects the presence and magnitude of electric charge by using metal leaves that will either repel or attract each other depending on the charge of the object being measured.
No, electric charge cannot be created or destroyed. It can only be transferred from one object to another. This is known as the law of conservation of charge, which states that the total amount of charge in a closed system will remain constant.