Ultraviolet (UV) refers to electromagnetic radiation with a wavelength shorter than that of visible light but longer than X-rays. It is typically divided into three categories based on wavelength: UV-A (400-320 nm), UV-B (320-280 nm), and UV-C (280-100 nm). UV radiation is produced by the sun and is also used in various industrial and medical…
“Visible” is also a mobile virtual network operator (MVNO) owned by Verizon Communications. Visible offers prepaid wireless service for smartphones, with unlimited data, voice, and text messaging, as well as mobile hotspot. Visible uses Verizon’s network infrastructure to provide service to its customers, and it is marketed as a budget-friendly alternative to Verizon’s traditional postpaid…
Infrared (IR) is a type of electromagnetic radiation that has a longer wavelength than visible light but shorter than radio waves. The wavelength of infrared radiation ranges from approximately 700 nanometers (nm) to 1 millimeter (mm). IR radiation is emitted by all objects with a temperature above absolute zero, and its intensity and wavelength distribution…
Microwaves are a type of electromagnetic radiation with wavelengths ranging from about 1 millimeter to 1 meter, and frequencies between 300 MHz (0.3 GHz) and 300 GHz. Microwaves are widely used in many different applications, including communication, radar, cooking, and medical treatment. One of the most well-known uses of microwaves is in microwave ovens, which…
Radio waves are a type of electromagnetic radiation that have wavelengths longer than those of visible light, ranging from about 1 millimeter to 100 kilometers. They are produced by various natural and man-made sources, such as the sun, lightning, and electronic devices. Radio waves can be used for a variety of purposes, including communication, navigation,…
The electromagnetic spectrum is the range of all types of electromagnetic radiation. It includes all the frequencies of electromagnetic radiation, which includes radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. The electromagnetic spectrum is arranged in order of increasing frequency and decreasing wavelength. Radio waves have the longest wavelengths and…
Electromagnetic waves are a type of wave that consists of oscillating electric and magnetic fields that propagate through space. These waves are characterized by several properties, including: What is Electromagnetic waves and their characteristics Electromagnetic waves are a type of wave that consists of oscillating electric and magnetic fields that propagate through space. These waves…
DC (direct current) and AC (alternating current) are two types of electrical power sources. DC sources provide a steady and constant flow of electrical energy in one direction. Batteries, fuel cells, and photovoltaic cells are common examples of DC sources. AC sources, on the other hand, provide electrical energy that alternates in direction and magnitude…
Self-inductance and mutual inductance are two important concepts in the field of electromagnetism. Self-inductance refers to the property of a circuit element, such as a coil or solenoid, to generate an electromotive force (EMF) in itself when the current through it changes. The EMF produced is proportional to the rate of change of the current…
Electromagnetic induction is the process of generating an electric current or electromotive force (EMF) by a changing magnetic field. It was discovered by Michael Faraday in the 1830s and is one of the most important principles of electromagnetism. Faraday’s law of electromagnetic induction states that when a magnetic field changes with time, it induces an…
