Electronic Devices - Transistor Bias Circuits - Discussion
Discussion Forum : Transistor Bias Circuits - True or False (Q.No. 10)
10.
The input resistance at the base of a transistor is RIN 
DCIBRE.
DCIBRE.Discussion:
2 comments Page 1 of 1.
Marki said:
3 years ago
IbRb-IeRe = 0 by Kvl
IbRb = IeRe ; since Ic approx. = to Ie then
IbRb = IcRe.
Rb = (Ic/Ib)Re ; β = Ic/Ib.
So, Rb = Rin = Beta(Re).
So the answer is false.
IbRb = IeRe ; since Ic approx. = to Ie then
IbRb = IcRe.
Rb = (Ic/Ib)Re ; β = Ic/Ib.
So, Rb = Rin = Beta(Re).
So the answer is false.
Millize said:
4 years ago
Please explain.
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