G2 Gas Fitter Practice Exam

What does the law of electrical charges state?

1. Like charges attract and opposite charges repel

2. Like charges repel and opposite charges attract

3. Like charges neutralize each other

4. Opposite charges can be canceled out

The correct answer is: Like charges repel and opposite charges attract

The law of electrical charges clearly states that like charges repel each other while opposite charges attract one another. This fundamental principle can be observed in various electrical phenomena. For example, when two balloons that have been charged by rubbing against each other are brought close together, they will push away from one another if they have the same type of charge (both positive or both negative). Conversely, if one balloon is negatively charged and the other is positively charged, they will attract each other. Understanding this principle is essential for applications in electrical engineering, electronics, and various fields of physics, as it governs the behavior of charged particles in different environments. Recognizing the nature of these interactions is crucial for predicting how electrical systems will behave under certain conditions.