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.
2. Deflection of an electron stream by means of a magnetic field.
In a television picture tube, the magnetic fields for horizontal and vertical deflection of the electron beam are produced by sending sawtooth currents through coils in a deflection yoke which goes around the neck of the picture tube.
2. A delay line consisting simply of a transmission line carrying pulse trains.
The delay time generally available is not sufficient for storing a large number of pulses within a reasonable line length.
2. An electromagnetic development, usually impulsive, that is superimposed on a desired signal.
The disturbance may be random or periodic.
2. The resulting product of the power and time distribution, in various frequency ranges, of the radiated or conducted electromagnetic emission levels that may be encountered by a military force, system, or platform when performing its assigned mission in its intended operational environment.
It is the sum of electromagnetic interference; electromagnetic pulse; hazards of electromagnetic radiation to personnel, ordnance, and volatile materials; and the natural phenomena effects of lightning and precipitation static.
Included are the fields produced by light, radio, X-rays, and gamma rays and the higher the frequency of the fields produced, the more energy is contained.2. The combination of electric and magnetic fields that surround moving electrical charges (for example, electrons); such as, those in electric currents.
Electromagnetic fields apply a force on other charges and can induce current flows in nearby conductors.3. An oscillating electric field and its associated magnetic field acting at right angles to each other and at right angles to their direction of motion.
4. The region surrounding a moving electric charge which consists of magnetic and electric force fields especially related; such as, to orientation and strength, and that possesses a definite amount of energy.
5. A field created by the interplay of an electric field and a magnetic field when an electric current passes through a wire.
An electromagnetic field consists of two kinds of energy: electrostatic (potential energy) and electrodynamic (kinetic energy).
2. A flowmeter that offers no obstruction to liquid flow.
Two coils produce an electromagnetic field in the conductive moving fluid.
The current induced in the liquid, detected by two electrodes, is directly proportional to the rate of flow.3. A flowmeter in which changes in the flow of blood are measured through impedance to electromagnetic lines of force that are introduced across a stream of blood.
It has the great advantage that an intact blood vessel can be used.
Electromagnetic force stops solids from falling apart, and acts between all particles with electric charges.
The elementary particle which is the carrier for the electromagnetic force is the photon.
Signal power is fed to the horn by a waveguide or an exciting dipole or loop at the input end of the horn.
"Those who claim to suffer from electromagnetic hypersensitivity report having headaches, fatigue, stress, sleep disturbances, skin symptoms like being stuck with needles, burning sensations and rashes, pains and aches in the muscles, and other health problems."
2. The production of electric current in a circuit when it is passed through a changing magnetic field.
3. Voltage produced in a coil as a result of the relative motion between the coil and magnetic lines of force; such as, flux linkages passing through the coil changes.
4. The production of an electromotive force in a circuit by the variation of the magnetic field with which the circuit is connected.
5. The generation of an electromotive force by changing the magnetic flux through a closed loop circuit, or by moving a conductor across the magnetic field.
This principle is the basis for the electric generator and electric motor.
2. Characteristic delay of a current in an electric circuit in reaching its maximum value, or in returning to zero, after the source voltage has been removed or applied.
2. The interaction caused by elementary particles that results from the coupling of charge to the electromagnetic field.
3. The interaction due to electric charge; this includes magnetic effects that have to do with moving electric charges.
4. An interaction between charged elementary particles which is intermediate in strength between the strong and weak interactions.