GEOLOGY

Detailed explanation-1: -Hint: When like poles are brought together, all the electrons start spinning in the same direction. And when unlike poles are brought together, all the electrons start spinning in the opposite direction.

Detailed explanation-2: -A magnet has two poles-North and South pole. Similar poles of a magnet repel each other whereas opposite poles attract each other.

Detailed explanation-3: -The rule to remember is that opposites attract. Every magnet has both a north and a south pole. When you place the north pole of one magnet near the south pole of another magnet, they are attracted to one another.

Detailed explanation-4: -The most basic law of magnetism is that like poles repel one another and unlike poles attract each other; this can easily be seen by attempting to place like poles of two magnets together.

Detailed explanation-5: -As was noted earlier, Coulomb established an inverse square law of force for magnetic poles and electric charges; according to his law, unlike poles attract and like poles repel, just as unlike charges attract and like charges repel.