Difference Between Conductor, Semiconductor and Insulator

The crucial difference between conductor, semiconductor and insulator rely on their level of conductivity. Conductors are basically the materials that allow easy flow of electric current, hence exhibiting high conductivity, semiconductors are the materials that possess moderate conductivity. As against, insulators are the materials that prevent the flow of charge through them, thus exhibiting low …

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Transmission Lines

Definition: Transmission lines are the conductors that serve as a path for transmitting (sending) electrical waves (energy) through them. These basically forms a connection between transmitter and receiver in order to permit signal transmission. Transmission lines in microwave engineering are known as distributed parameter networks. As their voltage and current shows variation over its entire …

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NPN Transistor

Definition: NPN transistor is a type of bipolar transistor that has 3 layers and is used for signal amplification. It is a current controlled device. NPN is an abbreviation used for a negative positive negative transistor. This means a p-type semiconductor is fused between 2 n-type semiconductor material. It has 3 regions namely emitter, base …

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Light Emitting Diode (LED)

Definition: LED is a PN junction diode, that emits light when a certain potential is provided to the diode. LED is the short form for Light Emitting Diode and is a forward biased device. This means it operates only when a forward voltage is applied to it. It is a semiconductor device whose operating principle …

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Varactor Diode

Definition: Varactor Diode is a PN junction diode that is especially operated in reverse biased mode. It is a device whose capacitance varies with the variation in the applied reverse bias potential. It is also known as varicap or voltcap. The word varicap is derived from the combination of word variable and capacitor. As these …

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PIN Diode

Definition: A PIN diode is an advancement of normal PN junction diode. It is a 3-layer device in which an intrinsic layer i.e., undoped semiconductor is sandwiched between P and N regions. Thus, making it a PIN diode. The presence of intrinsic region exhibits high resistance property. Due to this, the magnitude of the electric …

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