List some applications of electromagnetism.

Electromagnetism plays an important role in various applications from daily use to research work which are mentioned below: -

1. Household appliances:
• Ballasts are used in the lamps which work based on electromagnetic principle.
• Electromagnet also plays a role in blowers, electric fans and cooling systems like refrigerators, A.C. These equipment uses motors which work on the principle of electromagnetism.
• Induction cookers, mixers and grinders, bread toaster, microwave ovens all these kitchen appliances use electromagnetic.
• The electromagnetic principle is also used in entertainment systems like Television, stereo, or radio system. In these, an electromagnet is used in loudspeakers to create sound waves.
2. Medical uses: There are many medical appliances which use electromagnetism to diagnose diseases like Cancer. Examples of some appliances are magnetic resonance imaging (MRI)and hyperthermia treatments for cancer.
3. Communication System: Electromagnetic waves are used for communication nowadays. Information is delivered from the sender to receiver in a blink of an eye with the help of electromagnetic waves.
4. Magnetic Levitation Trains: As science and technology are improving at a vast rate, electromagnetism is coming into the forward and improving the traditional way of a job. A perfect example of this can be seen in high-speed trains which use a powerful electromagnet to develop the speed. These trains use the EMS and EDS to float over a guideway
5. Industries Appliances:
   • In industries, the major source of all the power source and driving system is generators and motors where they convert mechanical energy to electrical energy.
   • Many sensors and actuating devices used in industries also work on the principle of electromagnetism.