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
The transistor was the invention that allowed electronics to move away from the use of vacuum tubes (also called valves).
base to collector
The same things a transistor is used for.
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it cnverts to a low voltage.
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.
Its not!
Transistor stands for "Transfer Resistor". (Resistor of transference)
Transistor is called Bi-Polar device because the current can be flow due to electron and holes, hence it is called bipolar.
The types of dopant used are: p-type, n-type, p-type respectively.
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
transistor has 2 output 1 and 0 so can be used as a switch
The input of a transistor is typically referred to as the "gate" in a field-effect transistor (FET) or the "base" in a bipolar junction transistor (BJT). In both cases, the input controls the flow of current through the transistor, allowing it to function as a switch or amplifier in electronic circuits. The gate or base receives the input signal that modulates the transistor's operation.
A small signal NPN transistor used for general purpose audio amplifiers and switching.
Emitter biasing is when you add a resistor between the emitter of a transistor and the 0v rail so that any voltage developed across the emitter will subtract from the voltage on the base and effectively turn the transistor OFF. We are talking about an NPN transistor and the transistor is an "ordinary transistor" or BJT (bi-polar Junction Transistor). For more information on transistor biasing see: Talking Electronics website.
MOSFET is Metal Oxide Semiconductor Field Effect Transistor. IGFET Insulated Gate Field Effect Transistor. But these expressions are practically synonyms.
dirver transistor is added in a circuit so as to provide required voltage at an operating current which can not be provided by the microcontroller