The current consists of both electron and hole flow, in different parts of the transistor. The three leads of a bipolar transistor are called the Emitter , Base , and Collector. Transistors function as current regulators by allowing a small current to control a larger current.
The amount of current allowed between collector and emitter is primarily determined by the amount of current moving between base and emitter.
In order for a transistor to properly function as a current regulator, the controlling base current and the controlled collector currents must be going in the proper directions: meshing additively at the emitter and going against the emitter arrow symbol.
Prev Next Add comment Name required. E-mail required, but will not display. Subscribe to Category Feed. This kind of configuration is called NPN Transistor. This kind of configuration is called PNP Transistor. It is equivalent to two nose-to-nose diodes, but as before, just connecting two diodes will not work. Provided that, transistor should be turned ON with biased voltage at the base must be greater than diode's break over voltage.
Category : Electronic engineering. Namespaces Resource Discuss. Views Read Edit Edit source View history. In the n-type semiconductor, free electrons are the majority charge carriers and holes are the minority charge carriers whereas in the p-type semiconductor, holes are the majority charge carriers and free electrons are the minority charge carriers.
Therefore, in n-type semiconductor free electrons carry most of the current whereas in p-type semiconductor holes carry most of the current.
A transistor is a three-terminal semiconductor device that amplifies or switches the flow of current. A transistor is an electronic device that controls the current flow or switches the current flow.
A transistor is an electronic device that controls the movement of electrons charge carriers. A transistor is a small electronic device that controls the flow of electric current.
The three individuals credited with the invention of the transistor were John Bardeen, William Shockley, and Walter Brattain. Among these three individuals, William Shockley played a key role in the invention of the transistor. A transistor is a three-terminal semiconductor device that amplifies the electronic signals such as radio and television signals.
Before the transistors came into existence, vacuum tubes are used to amplify the electronic signals. But nowadays vacuum tubes are replaced by transistors because of its various advantages over vacuum tubes.
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