Final answer:
The direction of electrical force between like charges is that they repel each other. This behavior is explained by Coulomb's law and is essential for understanding electrical interactions.
Step-by-step explanation:
The direction of electrical force is based on the fact that like charges will repel each other. When two objects have the same electrical charge, they exert a repulsive force on each other. This principle is a key concept in understanding electrical interactions and is consistent with Coulomb's law, which states that the force between two point charges is proportional to the product of their charges and inversely proportional to the square of the distance between them. The force is directed along the line joining the two charges and is repulsive for like charges and attractive for opposite charges.
For example, two positively charged objects will push away from each other because the direction of the force vector is such that it tries to increase the distance between the similarly charged objects. Conversely, if one or both objects had been negatively charged, the forces would again repel if the charges were like. These phenomena can be observed through experiments with charged particles and are fundamental to the operation of electrical and electronic systems.