A capacitor having an electrolyte between the two plates. A thin layer of oxide is deposited on only the positive plate. The oxide acts as the dielectric for the capacitor. Electrolytic capacitors are polarized and so must be connected in …
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Electronic Glossary
Electromagnet
A coil of wire usually wound on a soft iron or steel core. When current is passed through the coil a magnetic field is generated. The core provides an easy path for the magnetic lines of force. This concentrates the …
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Electromagnetic Radiation (EMR)
In physics, Electromagnetic Radiation (EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays. All of these …
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Electromagnetic Waves
Electromagnetic Waves or EM Waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields. Electromagnetic waves are formed …
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Electromechanical Components
Electromechanical Components, or Electromechanical Parts can carry out electrical operations by using moving parts or by using electrical connections. An electromechanical component is one that uses an electrical signal to cause some kind of mechanical change, such as motor turning. …
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Electron
A subatomic particle of an atom, with a negative charge, that orbits the positively-charged nucleus.
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Electron Flow
Electrical current produced by the movement of free electrons toward a positive terminal; the direction of electron flow is opposite to that of current.
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Electroplating
The electro-deposition of metal coating on a conductive object. The metal may be conductive or non-conductive. The object is placed in an electrolyte and connected to one terminal of a DC voltage source. The metal to be deposited is similarly …
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Embedded
Resisters, capacitors and small chip die are embedded inside the PCB to increase density. Always called Resistor Embedded PCB, Capacitor Embedded PCB and Chip Embedded PCB.
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EMC
What’s EMC in PCB? Electromagnetic Compatibility (EMC) is the ability of electrical equipment and systems, which contain printed circuit boards (PCBs), to function accepted in their electromagnetic environment, by limiting the unintentional generation, propagation and reception of electromagnetic energy …
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