Electronics and Communication Engineering - Analog Electronics - Discussion
Discussion Forum : Analog Electronics - Section 5 (Q.No. 40)
40.
The current through R1 is(If β = 99, VBE = 0.74 V)
Answer: Option
Explanation:
IE = 1 mA, VBE = 0.7V, β = 99,
IC = aIE, IC = β, IB 
1 =
IB = 0.01 mA.
0.1 mA.
Discussion:
2 comments Page 1 of 1.
Shaiesh said:
1 decade ago
Simple method:
Vb = Vbe+VE = 1.7.
Current through r1 = 1.7/17 k = 0.1 mA.
Vb = Vbe+VE = 1.7.
Current through r1 = 1.7/17 k = 0.1 mA.
(1)
Sayan said:
3 years ago
It is impossible to calculate without the value of Rf.
Because as per the KCL, Current through Rf = Current through R1 + iB.
Because as per the KCL, Current through Rf = Current through R1 + iB.
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