Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion

45. 

In which region of a CE bipolar transistor is collector current almost constant?

[A]. Saturation region
[B]. Active region
[C]. Breakdown region
[D]. Both saturation and active region

Answer: Option B

Explanation:

It is used as amplifier when it operates in this region.


Mani said: (Feb 26, 2015)  
Option A is correct.

It is used as switch on condition, when it operates in this region.

Vipin said: (Apr 29, 2015)  
It is a wrong answer, collector current is constant when the transistor is in saturation region.

Prudhvi said: (May 21, 2015)  
Yeah in saturation is constant.

Vini said: (Jun 16, 2015)  
Linear when use as an amplifier man!

Suryadeep said: (Jul 29, 2015)  
The answer is A (saturation).

Vedant said: (Mar 10, 2017)  
The correct answer should be (A).

Dolon said: (Oct 1, 2017)  
Transistor graph shows in active region Ic is almost constant.

Koppal said: (Jan 18, 2018)  
Option A is correct.

Jonsnow said: (Jan 27, 2018)  
In the graph. As the Vce increases to 0.7, the Ic increases exponentially until it reaches saturation point.

After saturation point Ic connot increase further as the Vce increases (above 0.7V) to cutoff point, in this case Ic is constant in active region.

Ashish said: (Sep 10, 2018)  
Ic will be constant in active region therefore correct answer is B.

Sireesha said: (Feb 22, 2019)  
Ic will be constant in active region, so then only transistor operates like an amplifier. Beyond that input voltage is increasing transistor enters into saturation region.

Rajashekar said: (Jun 29, 2019)  
B is the correct option, I agree.

Xyz said: (Aug 9, 2020)  
Agree, Options B is Correct.

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