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Transmit data and signals
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- Electromagnetic waves are ubiquitous in nature (i.e., light) and used in modern technology—AM and FM radio, cordless and cellular phones, garage door openers, wireless networks, radar, microwave ovens, etc. These and many more such devices use electromagnetic waves to transmit data and signals.
Electromagnetic waves move at the speed of light and are capable of travelling in a vacuum or free space. The ordered representation of electromagnetic waves is given by an electromagnetic spectrum.
- Chitra Sharma
Electromagnetic Wave: Electromagnetic waves are a self-propagating transverse wave of oscillating electric and magnetic fields. The direction of the electric field is indicated in blue, the magnetic field in red, and the wave propagates in the positive x-direction.
Feb 21, 2024 · Electromagnetic waves are characterised by electric and magnetic fields oscillating perpendicularly to each other and the direction of energy propagation. These waves have several fundamental properties that make them distinct and crucial for various applications.
Oct 9, 2020 · Electromagnetic waves consist of magnetic fields and vibrating electricity. This is where they transmit energy across space or through matter. There are three main properties you should know about electromagnetic waves: Speed: All electromagnetic waves travel at the same speed. This speed, known as the speed of light, is around 300 million ...
- Radio waves. Radio waves have the longest wavelengths and the least energy of all electromagnetic waves. There are different types of radio waves. Different types of radio waves have different penetrating abilities and have different uses.
- Microwaves & Millimeter waves. Today, due to the advancement in technology, generating electromagnetic waves of much shorter wavelengths has become easier.
- Infrared waves. Infrared rays are heat waves given off by most objects. They have wavelengths ranging from 1 mm to 700 nm. Infrared waves cannot penetrate walls.
- Visible light. Visible light is the range of frequencies that are visible to our naked eyes. You can read more about visible light and its properties in our blog post here: The visible spectrum.
Mar 13, 2020 · Electromagnetic (EM) waves, also called electromagnetic radiation, are created by the coupling of oscillating electric and magnetic fields, whose directions are perpendicular to each other. The direction of propagation of the EM wave is perpendicular to both the electric and magnetic field vectors.
Jul 19, 2022 · Electromagnetic waves definition: The waves produced when an electric field comes in contact with the magnetic field are called electromagnetic or EM waves. They are a composition of oscillating magnetic and electric fields that can be studied using Maxwell’s equations.
