A magnet is a material that produces a magnetic field and attracts objects made of iron, nickel, or cobalt. It has two poles: North (N) and South (S). Like poles repel; unlike poles attract.

In physics labs, use magnets in experiments to study:

Magnetic field patterns using iron filings
The behavior of compasses near magnets
Electromagnetic induction with coils and galvanometers
The force on current-carrying conductors in a magnetic field
Magnets are also used in making devices like electric bells, motors, and generators
They help students observe and understand the invisible effects of magnetism.