electro-, electr-, electri-
(Greek > Latin: electric, electricity; from amber, resembling amber, generated from amber which when rubbed vigorously [as by friction], produced the effect of static electricity)
Electronics in our lives consists of numerous tools
Equipment which we use everyday relies on electronics to function including calculators, car controls, cameras, washing machines, medical scanners, mobile telephones, radar systems, computers; as well as many other applications or devices which are listed in this unit.
Such electromagnetic surveying can determine if there is gold, silver, or other metals by finding them and then recording their existence to those who are looking for the minerals.
2. The tolerance of circuits and components to all sources of interfering electromagnetic energy.
Units in the system are usually presented with the prefix ab-; such as, abampere, abvolt, etc.2. A centimeter-gram-second system of electric and magnetic units in which the unit of current is defined as the current which, if maintained in two straight parallel wires having infinite length and being one centimeter apart in vacuum, would produce between these conductors a force of two dynes (units of force) per centimeter of length.
Other units are derived from this definition by assigning unit coefficients in equations relating electric and magnetic quantities.
2. The theory of the propagation of energy by the combined electric and magnetic fields which are included in Maxwell's equations.
Maxwell's equations refers to the fundamental equations, developed by J.C. Maxwell, for expressing radiation mathematically and describing the condition at any point under the influence of varying electric and magnetic fields.
See electromagnetic theory of light or take a look at production and interrelation of electric and magnetic fields, Maxwell's equations for explanations of what the term, Maxwell's equations, is all about.
2. The theory that light consists of electromagnetic radiation and therefore obeys Maxwell's equations; contrasted with earlier concepts that light was a stream of tiny particles or light was a wave in a medium of ether.
Maxwell's equations consists of the four fundamental equations that describe the behavior of electric and magnetic fields in time and space and the dependence of these fields on the distribution and behavior of electric charges and currents.
These four partial differential equations relate to the electric and magnetic fields to their sources, charge density, and current density.
2. A transverse wave associated with the transmission of electromagnetic energy.
The magnet is attached to the ossicular chain (any of certain small bones, as those of the middle ear), tympanic membrane, or the inner ear (round window or fenestra).
A fluctuating magnetic field is generated when the coil is energized by a signal, which corresponds to an acoustic input and this magnetic field causes the magnet to vibrate.
The vibrating magnet, in turn, causes movement of either the ossicular chain or the cochlear fluids directly.
The force generated is inversely proportional to the square of the distance between the coil and magnet (e.g., doubling the distance between the magnet and coil results in an output of one-fourth the force); therefore, these two components must be maintained in close proximity to one another to realize an efficient system.
2. Any unit in the centimeter-gram-second system of units for measuring electricity and magnetism that gives a value of one to the magnetic constant; for example, the abampere, abfarad, abhenry, or the abvolt.
This takes place when a circuit requires an alternating current to operate and a reed within the vibrator is alternately attracted to two electromagnets.
2. A wave which consists of both electric and magnetic variation.
3. A wave of electromagnetic radiation generated by the oscillation of a charged particle and characterized by periodic variations of electric and magnetic fields.
4. A wave of energy made up of an electric and a magnetic field which is generated when an electric charge oscillates or is accelerated.
Light waves and radio waves are electromagnetic waves, according to their frequencies and wavelengths.
The primary kinds of electromagnetic waves, ranging from the longest to the shortest wave length, are long radio waves, short radio waves, infrared rays, visible light, ultraviolet light, X-rays, and gamma rays.
2. Any device to transmit electromagnetic waves of desired frequencies while substantially reducing the strength of all of the other frequencies.
Included in the spectrum, in the order of increasing frequency (or decreasing wavelength) are the following types of waves: radio, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
2. A reference to the branch of physics which deals with electricity and magnetism.