What is the source of an electromagnetic wave?
Electromagnetic waves are usually generated by vibrating electric charges. Think of an antenna. An oscillating voltage is applied to it, causing the electrons in the antenna to move back and forth, generating the electromagnetic wave.
How are electromagnetic waves produced explain?
Electromagnetic radiation, is a form of energy emitted by moving charged particles. As it travels through space it behaves like a wave, and has an oscillating electric field component and an oscillating magnetic field. These waves oscillate perpendicularly to and in phase with one another.
How were electromagnetic waves discovered?
In 1887 Heinrich Hertz demonstrated the existence of the waves predicted by Maxwell by producing radio waves in his laboratory. It took a bit longer for scientists to discover the higher-energy (shorter wavelength) light in the electromagnetic spectrum.
What produces an electromagnetic wave quizlet?
Electromagnetic waves are produced when an electric charge vibrates or accelerates.
What is an example of an electromagnetic energy?
Examples are radio waves, microwaves, infrared radiation, visible light – (all colors of the spectrum that we see), ultraviolet light, X-rays and gamma radiation.
How important are electromagnetic waves in our lives?
They are also responsible for transmitting energy in the form of microwaves, infrared radiation (IR), visible light (VIS), ultraviolet light (UV), X-rays, and gamma rays. Each region of this spectrum plays an important part in our lives, and in the business involving communication technology.