Electrotechnics

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Direct current (DC)

Direct current (DC) is electricity flowing in a constant direction,…

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Electric resistance

The electrical resistance is the opposition to the motion of…

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Passive device

Components incapable of controlling current by means of another electrical…

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Active device

An active device is any type of circuit component with…

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Filter circuit

Circuits capable of selectively filtering one frequency or range of…

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Organic light-emitting diode (OLED)

OLED (Organic Light Emitting Diodes) is a light-emitting diode (LED),…

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Electric circuit

An electric circuit is an unbroken loop of conductive material…

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Electrical impedance

Electrical impedance is a physical quantity that represents the opposition…

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Getter

The getter is an inert electrode, coated with magnesium or…

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