Magnetism

Earth behaves like a giant magnet. Deep inside, the movement of molten iron in the outer core creates a magnetic field that surrounds the planet. This

Magnetic field reversal is a natural process where Earth’s magnetic poles switch places—north becomes south, and south becomes north. This doesn’t hap

A solenoid is a coil of wire that acts like a magnet when an electric current flows through it. It creates a magnetic field, similar to the one around

An electromagnet is a magnet that is powered by electricity. It’s made by wrapping wire around a piece of metal (usually iron) and then running an ele

A generator is a device that turns motion into electricity using the science of electromagnetic induction. Inside a generator, coils of wire spin insi

Ferromagnetic materials are special types of substances that can become strongly magnetized. This means their atoms have tiny magnetic fields that can

Electromagnetic devices are tools and machines that use electricity and magnetism together to do work. When an electric current flows through a wire,

Magnetic force is a non-contact force that acts between objects made of certain materials, like iron, cobalt, or nickel. This force is caused by the p

Earth acts like a giant magnet because of what’s happening deep inside it. In the outer core, hot, molten iron and nickel move in swirling patterns as

Earth’s magnetic field is an invisible force that stretches around our planet and protects us from harmful space radiation. But it’s also incredibly u

Electromagnetism is the interaction between electricity and magnetism. When an electric current flows through a wire, it creates a magnetic field arou

Electromagnetic induction is the process of generating electricity using a magnetic field. It happens when a wire moves through a magnetic field or wh

An electric motor is a device that converts electrical energy into mechanical energy or motion. It works by converting the force between electric curr

Transformers are devices that change the voltage of an electric current using electromagnetic induction. They play an important role in how electricit

The electrical grid is a system that delivers electricity from power plants to homes, schools, and businesses. It includes power stations, transformer