: From the fan in your bathroom to the motor in an electric car, magnets are used to convert electricity into motion.
The Earth itself acts like a massive bar magnet. Its core, made of molten iron and nickel, creates a magnetic field that stretches far into space. This field is what causes a compass needle to point north and protects our planet from harmful solar radiation.
: Credit cards and security badges use magnetic strips to store account information. Common Household Objects Attracted to Magnets magnet
: These materials act like permanent magnets when they are within a strong magnetic field but lose their magnetism once that field is removed. A classic example is a paperclip that can pick up other paperclips after being touched by a permanent magnet.
The machine is one of the most significant medical uses of magnets. It uses incredibly powerful magnets to align the nuclei of atoms in the human body, allowing doctors to see detailed images of internal organs without using invasive surgery or radiation. 3. Industrial and Commercial Use : From the fan in your bathroom to
: Paper clips, binder clips, and even some metal hangers.
Every magnet has two poles: a and a South Pole . Like poles (North-North or South-South) repel each other, while opposite poles attract. The Four Main Types of Magnets This field is what causes a compass needle
: These are the most common type. They maintain their magnetic properties even after the external magnetic field is removed. Examples include the magnets on your fridge or those found in jewelry clasps.