WHAT KINDS OF MAGNETS ARE THERE?

Magnets are anything that attracts iron. Ceramic and graphite synthetic magnets are used commonly. They are difficult to demagnetize and are stable to tiny charges. They weigh 605 less than the metallic and are cheaper to make. They are more shock resistant. The are used for speakers, mikes, computers, car radios, tape recorders, doorbells and magnetic games. Artificial magnets are a mixture of aluminum, nickel, iron and cobalt. This alloy is called ALMICO. Its main component is iron and it is cheap. Neodymium a rare element discovered in 1885 is the most powerful magnet, not readily available and used for cancer treatment. Electromagnets are made of iron and are used in scientific laboratories. They cannot produce a desired polarity. They provide a uniform magnetic field when continuous electric current passes through a solenoid. Stop the current and the effect is a magnetic field. They quickly activate and deactivate the magnetic field. BACK TO TOP WHAT CAUSES MAGNETISM? Millions ...  more