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What are electromagnetic Waves? and how are they produced??

When a charge particle moves with acceleration then it produces both electric and magnetic field and the Electromagnetic waves are produced. These EM wave have are energy waves having perpendicular electric and magnetic fields. These waves can travel in vaccum and also and no medium is required for their propagation. These are generally called radiation.

Mobile communication is based on EM waves.

Electromagnetic waves are formed as a result of accelerating (electric) charges under electric field. Electric charge exhibit electrostatic behavior and once they start moving magnetic effects come into play. As a result of this a duality is established which is called electromagnetism. The electromagnetic waves are emitted by those charged particles. These waves move with the velocity of light.

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Electromagnetic radiation (EM radiation or EMR) is a form of energy emitted and absorbed by charged particles which exhibits wave-like behavior as it travels through space. EMR has both electric and magnetic field components, which stand in a fixed ratio of intensity to each other, and which oscillate in phase perpendicular to each other and perpendicular to the direction of energy and wave propagation. In a vacuum, electromagnetic radiation propagates at a characteristic speed, the speed of light.

Electromagnetic radiation is a particular form of the more general electromagnetic field (EM field), which is produced by moving charges. Electromagnetic radiation is associated with EM fields that are far enough away from the moving charges that produced them that absorption of the EM radiation no longer affects the behavior of these moving charges. These two types or behaviors of EM field are sometimes referred to as the near and far field. In this language, EMR is merely another name for the far-field. Charges and currents directly produce the near-field. However, charges and currents produce EMR only indirectly—rather, in EMR, both the magnetic and electric fields are associated with changes in the other type of field, not directly by charges and currents. This close relationship assures that the electric and magnetic fields in EMR exist in a constant ratio of strengths to each other, and also to be found in phase, with maxima and nodes in each found at the same places in space

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The waves which possesse electric and magnetic property are called electromagnetic waves. For example light wave of sun is electromagnetic wave.

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Electromagnetic Waves = Electric Field(E) + Magnetic Field (M) Travelling In "Wave" Motion Where E And M Are Perpendicular To Each Other And To The Direction Of Propagation Of The Wave.Eg : If The Wave Moves In The Direction Of X-axis , E Will Be In Y OR Z Axis And Z Will Be In Y OR Z Axis . If E Is In Y , M Will Be In Z And Vice Versa.

They Are Produced By " Oscillating Charges Or Charged Particle" .A Changing Electric Field And A Changing Magnetic Field Produces Electric Field.Once A Field Is Produced , The Latter Will Form Automatically .

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