Electronic Devices - DC Biasing-FETs - Discussion

Discussion Forum : DC Biasing-FETs - General Questions (Q.No. 12)
12.
Calculate the value of RS. Assume VGSQ = −2V.

0 k
1.68 k
6.81 k
8.5 k
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Bahkekekek said:   6 years ago
Vg = Vdd(R2/R2+R1)
= 18(47k/47k+91k)
Vg=5.449

KVL process
VDD-RdId-8=0
16-1.8kId-8=0
Id=4.44mA

Vgs=Vg-Vs
-2V= 5.449-Vs

Vs=7.449V
Vs=IdRs
7.449=4.44mARs

Rs=1676.19 ohms or 1.68komhs

Suraj balaskar said:   8 years ago
Vg = (16 * 47)/(91+47),
Vgs = Vg-Vs.

Id = (16-8)/(1.8*10^3),
Vs = Id * Rs.

Kimchong said:   1 decade ago
What is Vgsq ?

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