Electromagnetic waves
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- Yes me too, let's talk about it while we're going home
- I really like our lesson for today!
- I learned in our lesson that electromagnetic waves are created when an electric field collides with a magnetic field. You've also learnt that electromagnetic waves come in a variety of shapes and sizes. Radio waves, microwaves, infrared, visible light, ultraviolet X rays, and gamma rays are all examples of electromagnetic radiation.
- In addition to that, our science teacher tell us about the history of the electromagnetic theory and the contribution of each scientist on its development.
- The electromagnetic wave theory states that any acceleration of an electric charge or change in the magnetic field produces radiation. This radiation can come in the form of either a wave or a particle.
- In 1013, Johan Karl Frederick Gauss, a German physicist and mathematician, stated that a net amount of charge contained within a region of space will generate an electric field that emanates through the surface that surrounds that region.
- While in 1820, Hans Christian Erstad, a Danish physicist and chemist, discovered that electric current in a wire can deflect a magnetized Compass needle. This discovery that electric currents create magnetic fields was the first connection found between electricity and magnetism.
- And the last one is in 1826, Andre Marie Ampere, a French physicist and mathematician, discovered the force between two current carrying wires. He observed in his experiment that magnetic field in space around an electric current is proportional to the electric current, which serves as its source just as the electric field in space is proportional to the charge.
- I'm glad that you remember our lesson about Electromagnetic waves. See you tomorrow Mich I'll go ahead.
- Yes, see you tomorrow Monica! Have a nice day.
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