Electronics and Communication Engineering - Analog Electronics - Discussion

2. 

For a base current of 10 μA, what is the value of collector current in common emitter if βdc = 100

[A]. 10 μA
[B]. 100 μA
[C]. 1 mA
[D]. 10 mA

Answer: Option C

Explanation:

IC = 10 x 100 μA = 1 mA.


Tabrej said: (Jun 14, 2015)  
Here formula is used.

Collector current/Base current = Emitter current.

Pradeep said: (May 27, 2016)  
Beta = IC/IB.

IC = Beta * IB.
= 100 * 10uA.
= 1mA.

Am I right?

Pavi said: (Oct 19, 2016)  
Yes, you are right @Pradeep.

Beta = IC/IB.

Kumar said: (May 4, 2017)  
Yes, right @Pavi and @Pradeep.

Beta = Ic/Ib.

Abhi said: (Aug 7, 2017)  
Explain detailly.

Priya said: (Jan 21, 2018)  
Thank you all.

Lalshmishree said: (Mar 19, 2018)  
Thank you for the explanation.

Sam said: (Jun 20, 2018)  
What is for α?

Anomiee said: (Jan 9, 2019)  
Here how current is converted from micro to mili Ampere?

Please explain in detail.

Suresh Kumar said: (Jan 25, 2019)  
100micro amps = 1mA.
Then, 1000micro amps = 1mA.
(Micro ÷ 1000=milli).

Thilak said: (Sep 5, 2019)  
@Sam.

α = ie/ic.

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