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Is electromagnetism a combination of electricity and megnetism; hence "electro-magnetism"?
Electromagnetism is a branch of physics that deals with the study of electricity and magnetism, and their interrelationship. It explains the behavior of charged particles and how they interact with electric and magnetic fields.
An electromagnet is a type of magnet that is created by passing an electric current through a coil of wire. The magnetic field produced by the electric current can be turned on or off by controlling the flow of electricity, making it a more versatile magnet than a permanent magnet.
Electricity and magnetism are closely related, and the flow of electric current through a wire creates a circular magnetic field around the wire. The strength of the magnetic field can be increased by increasing the amount of current flowing through the wire.
The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation, from low frequency radio waves to high frequency gamma rays. This spectrum includes all forms of electromagnetic radiation, such as visible light, infrared radiation, ultraviolet radiation, and more.
Electromagnetism has many practical applications in our daily lives. Some common examples include electric motors, generators, and transformers used in household appliances, transportation, and power plants. Electromagnets are also used in medical devices, computers, and telecommunications equipment.