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Transistor(a.k.a. a BJT or Bipolar
Transistor) is an active
semiconductor deviceformed by two
P-N junctionswhose function is amplification of an electric
Wiki User
∙ 11y ago
Wiki User
∙ 15y agoJunction field-effect transistor (JFET) is a type of transistor (single-carrier-type) that relies on an EMF applied across the Gate and Source to control the conductivity of a channel (flow of electron holes) usually developed between terminals called Source and Drain. This device when influenced by a Gate potential EMF will cause electron flow from the source terminal towards the drain terminal. The channel of any FET maintains a process of doping which will produce either an N-type or a P-type channel. For example an N- type depletion-mode JFET requires a negative gate-to-source voltage which causes the depletion region to expand thus narrowing the channel. In an N-type enhancement-mode JFET a positive gate-to-source voltage is necessary to create a conductive channel since it does not exist.
Wiki User
∙ 14y agothere are two characterstics of BJT,one is input and output characterstics. The output is controlled by input .
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Why high noise in bipolar junction transistor?
In the case of Bipolar Junction Transistor current conduction is due to both holes and electrons. That's why noise is high in Bipolar Junction Transistor
What are the example current controlled device?
Bipolar junction transistor(BJT)
What separates the three regions in a BJT?
Two junctions namely emitter-base junction and collector-base junction separates regions in a transistor.
Name the device that receives a signal and retransmit it at a higher level of higher power?
A relay or repeater. EDIT: The bipolar junction transistor
How do NPN bipolar junction transistors turn on and off?
In order to bias a bipolar junction transistor on, you need to forward bias the base-emitter junction at the same time you forward bias the collector-emitter junction, and the ratio of collector current over base current must be somewhat less than hFe, the transistor's gain. This is known as saturated, or non-linear mode, operation. In practice, we drive the base much harder than the calculated required current, so as to minimize dependency on varying hFe's for various transistors.Turning the transistor off is a simple matter of eliminating the base current.In the case of the NPN transistor, the base and collector would need to be more positive than the emitter. In the case of the PNP, they would need to be more negative.
Why high noise in bipolar junction transistor?
In the case of Bipolar Junction Transistor current conduction is due to both holes and electrons. That's why noise is high in Bipolar Junction Transistor
Why ordinary transistor is known as bipolar junction transistor?
Transistor is known as bipolar junction becoz it has 2 pole. Input is given to the 2 junction and output is taken from to junction
Is junction transistor and bipolar junction transistor are same?
Yes, the are different names for the same thing.
What is use of bipolar junction transistor?
amplifier, switch, oscillator, etc.
How do you test the bipolar junction transistor?
through the used of multi-tester
What BJT stand for?
Unless it is some leet speak term I am not aware of, BJTstands for Bipolar Junction Transistor or (less common) Business Japanese Proficiency Test.
How can the bipolar junction transistor be used as a diode?
A: Yes it can but why ? This is frequently done when the diode is used for biasing purposes on another transistor and must be matched identically to the transistor's E-B junction characteristics. Thus 2 matched transistors are used with one just being used as a diode.
What types of transistors are the following - BJT PCT UJT SBT FET GJT AJT DFT?
The BJT is the bipolar junction transistor, the PCT is the point contact transistor, the UJT is the uni-junction transistor, the SBT is the surface barrier transistor, the FET is the field effect transistor, the GJT is the grown-junction transistor, the AJT is the alloy-junction transistor, and the DFT is the drift field-junction transistor.
What are the example current controlled device?
Bipolar junction transistor(BJT)
What is the correct current equation for a bipolar junction transistor?
Ie=Ic+Ib
Do people use bipolar junction transistor today?
Yes people still use bipolar junction transistors today because of its high switching speed.
What is common collector bipolar junction?
A circuit in which the input signal is applied to its base and the collector is earthed (grounded) is known as common collector configuration of BJT (BiPolar Junction Transistor)
