Because in this device the resistance between two terminal respectively collector and emitter is changed by changing the base voltage that is it transfers the resistance between emitter and collector therefore it is called as TRANSISTOR. (TRANSFER OF RESISTOR)
transistor employin flow of both electron and holes for conduction is bipolar junction transistor.they are bipolar in nature.a bjt has two pn junctions, one between emitter and base and the other between base and collector.
a transistor employin both hole and electrons(major and minor charge carrier) for conduction is bipolar junction transistor.
No.
There is confusion above between electrons/holes and majority/minority carriers.
In P-type, majority carriers are holes, minorities are electrons.
In N-type, majority carriers are electrons, minorities are holes.
Generally, majority carriers are preferred, minority carriers are designed to be of as low density as possible.
The simplest distinction is that there are two different types of semiconductor, P-type and N-type, which may be PNP or NPN, and that the device uses a "sandwich" junction construction.
the transistor is called as transistor because there is transfer of resistance from input to output .transfer resistance so it is transistor.
it makes use of both majority and minority carriers in its operation
MOSFET is Metal Oxide Semiconductor Field Effect Transistor. IGFET Insulated Gate Field Effect Transistor. But these expressions are practically synonyms.
Even though it has only two types of charge carriers we will not call it as a diode but a transistor since it is a three terminal device.
The base.
The active region of a transistor is when the transistor has sufficient base current to turn the transistor on and for a larger current to flow from emitter to collector. This is the region where the transistor is on and fully operating.
Power transistor can conduct large amount of currents through it, more than small signal transistor. power transistor has a vertical structure and small signal transistor has horizontal structure.In power transistor quasi saturation region is present which is absent in the small signal transistor. In power transistor there is a inculsion of drift layer which is not there in the small signal transistor. Power dissipation is less in power transistor and it is more in small signal transistor. b.v.polytechnic,vasai pushkar vaity.
transistor. This word is a blended form of transfer of resistor. The legs of transistor (collector, emitter,base) transfer the resistance. So it is called as transistor
Its not!
Transistor is called Bi-Polar device because the current can be flow due to electron and holes, hence it is called bipolar.
Transistor=Transfer+Resistor. When Transistor operates in active region its input resistance is high and output resistance is low. So,We can consider transistor as a device which transfers its resistance from high to low. And by this property transistor amplifies input signal.
When the out from a transistor is the exact replic of the input signal then it is called unmodulated signal i e. there will not be any change in frequency voltage power etc
A small signal NPN transistor used for general purpose audio amplifiers and switching.
MOSFET is Metal Oxide Semiconductor Field Effect Transistor. IGFET Insulated Gate Field Effect Transistor. But these expressions are practically synonyms.
Even though it has only two types of charge carriers we will not call it as a diode but a transistor since it is a three terminal device.
The base.
In the switching transistor the output current is controlled by the (current) and this is also called current controlled current device (CCCD). But in ordinary switch we controlled output current physically...
in bipolar transistors it is called the basein field effect transistors it is called the channel
A silicon transistor is a transistor made of silicon.