Electronic Devices - BJT Devices - Discussion
Discussion Forum : BJT Devices - General Questions (Q.No. 13)
13.
Use this table of collector characteristics to calculate 
ac at VCE = 15 V and IB = 30 
A.
ac at VCE = 15 V and IB = 30 A. 
Discussion:
15 comments Page 2 of 2.
Nikhil said:
1 decade ago
From graph.
Ic=3mA and Ib given is 30uA.
So, B= Ic/Ib = 3mA/30uA = 100A.
Ic=3mA and Ib given is 30uA.
So, B= Ic/Ib = 3mA/30uA = 100A.
Priyam srivastava said:
1 decade ago
Beta = Ic/Ib , because beta comes in CE case so in this case input is base and output is collector so current amplification beta equals to collector current/base current.
So, beta = 100
So, beta = 100
Avi said:
1 decade ago
I think Ic is 3.2 mA. SO, THE ANSWER MUST BE 106.
Ankita said:
1 decade ago
Please explain how Ic is being calculated.
Emery said:
1 decade ago
Vce = 15v at Ib = 30uA is equal Ic = 3mA,
so, beta = Ic/Ib
= 3mA/30uA
= 100...^_^
so, beta = Ic/Ib
= 3mA/30uA
= 100...^_^
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