A magnet is a material with a magnetic field that attracts certain substances like iron and steel. Permanent and electromagnets behave differently, with ferromagnetic materials being strongly attracted to magnets. Understanding magnetism involves identifying materials with strong or weak magnetic effects.
A magnet is a material which has a strong magnetic field around it. Magnetic forces of attraction exist between a magnet and a magnetic substance, such as iron, steel, cobalt and nickel.
In everyday examples, permanent magnets like refrigerator magnets are made of ferromagnetic materials like iron, nickel, cobalt, and rare earth metals. These materials are strongly attracted to magnets and can create their own persistent magnetic fields. Electromagnets, on the other hand, magnetize only when an electric current flows through them.
Only certain materials such as iron, cobalt, nickel, and gadolinium exhibit strong magnetic effects and are known as ferromagnetic materials. Other substances may exhibit weak magnetic effects which require sensitive instruments to detect.
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