A basic law of magnetism states that unlike poles _____ and like poles _____.

A) attract; repel
B) repel; attract

Basic Law

A fundamental principle or rule that serves as the foundation for a system, typically referring to laws of nature or established scientific principles.

Unlike Poles

Refers to the north and south poles of magnets; when magnets have poles facing each other that are different, they attract.

Like Poles

Magnetic poles of the same kind (either both north or both south), which repel each other according to magnetic principles.