What occurs when a north pole of one magnet approaches the south pole of another magnet?

• A. The magnets repel each other.
• B. The magnets attract each other.
• C. Both magnets lose their magnetism.
• D. One magnet will gain strength.

Answer: (B)

When the north pole of one magnet approaches the south pole of another magnet, they exhibit an attractive force. This phenomenon is based on the fundamental principles of magnetism, which state that opposite poles attract. The north pole of a magnet contains magnetic field lines that extend outward, while the south pole has field lines that come inwards. When these two opposite poles come close, their magnetic fields interact in such a way that they pull towards each other, resulting in attraction.

This attraction is a fundamental characteristic of magnets and is essential in various applications, such as in electric motors and magnetic devices. The other options do not accurately describe the interaction between a north and south pole; repulsion occurs only between like poles (north-north or south-south), while losing magnetism or gaining strength does not necessarily occur when magnets interact in this way.