Discussion :: Bipolar Junction Transistors (BJT) - General Questions (Q.No.11)
The C-B configuration is used to provide which type of gain?
Answer: Option A
No answer description available for this question.
|Junpher said: (Jul 6, 2011)|
|Commonly c-b is used for voltage or supply and the E is use wally tap in the ground or negative.|
|Desi said: (Sep 3, 2011)|
|In Cb Ai=1,but the voltage is more,hence voltage gain.|
|Sukhpreet said: (Jan 28, 2012)|
|in CB configuration voltage gain is about 150 and in CE voltage gain is 500.. So according to this CE confi. should be used for voltage gain.. Why here CB??|
|Ankit Katare said: (Sep 11, 2012)|
|Because in c-b configuration has high voltage gain.|
|Arpit Gaur said: (Sep 21, 2012)|
|The answer of this absolutely A, since in c-b config. The o/p current in not so large,
Therefore acc. To the o/p equation:.
Vc = Vcc - IcRc.
The o/p voltage Vc is large and hence the voltage gain is also large.
|Saurabh Verma said: (Dec 6, 2012)|
|CB is used as current buffer, very little change comes in current, but larger change in voltage at o/p, so it is used for voltage gain. CC used as current amplifier, because there is larger change in o/p current and not very large change in o/p voltage.|
|Irfan said: (Jun 30, 2013)|
|Common base (C.B) Configuration used for high input resistance. Not for voltage gain. For voltage gain we used C.E configuration.|
|Obeng Samuel said: (Nov 25, 2013)|
|The collector supply voltage which is equal to the dc supply voltage. For voltage gain, the configuration should be in CB.|
|Vekatesh said: (Dec 29, 2013)|
|It is for current gain and not for voltage gain.|
|Swagatika Sahu said: (Apr 22, 2014)|
|Common collector is used as voltage follower/voltage buffer circuit as Av=1.
Common base is used as voltage amplification circuit as Av=600 and Ai=1, current follower circuit.
In common emitter Av=-200 and Ai=-100..It offers very high power gain.
|Dip said: (Jan 31, 2015)|
|Transistor Configuration Summary Table:
Transistor Configuration Common Base Common Collector Common Emitter
|Ranger said: (Oct 7, 2015)|
|But the input impedance of the C-B configuration is low and output impedance is high.
So it can also be said that increase in resistance can be correct.
Please provide arguments.
|Santhosh said: (Aug 24, 2017)|
|In common base voltage gain is high.|
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