Electronic Devices - DC Biasing-BJTs - Discussion
Discussion Forum : DC Biasing-BJTs - General Questions (Q.No. 6)
6.
Calculate the voltage across the 91 k
resistor.
resistor. 
Discussion:
12 comments Page 2 of 2.
Sujith said:
10 years ago
Please any one can elaborate the answer because I just start to study this.
Poojadeep gaikwad said:
9 years ago
Ie = Ic + Ib.
Ie = Ib*b + Ib (where b=beta).
Ie = Ib (1 + b).
= 3.3Ie + 201 Ib + 0.7 + 0.510 Ie = 18.
By solving this equation,
Ib = 0.035.
So v/g across 91k resistor will be equal to 0.035 * 91 k = 3.2 v.
Ie = Ib*b + Ib (where b=beta).
Ie = Ib (1 + b).
= 3.3Ie + 201 Ib + 0.7 + 0.510 Ie = 18.
By solving this equation,
Ib = 0.035.
So v/g across 91k resistor will be equal to 0.035 * 91 k = 3.2 v.
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