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For the given circuit find IDq and VGSq. Also state in which operating region circuit works.

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Mumbai University > Electronics Engineering > Sem 4 > Discrete Electronic Circuits

Marks: 10M

Year: May 2015

1 Answer
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Given:

$IDSS = 10mA$

$V_P = - 4V$

Solution:

We know that,

$IDS = IDSS(1- \frac{VGS}{V_P})^2$

$IDS = 10m(1 + \frac{VGS}{4})^2$

Put different values of VGS and obtain IDS.

VGS(V) IDS (mA)
0 10
-0.5 7.65
-1 5.625
-1.5 3.90
-2 2.5
-2.5 1.4
-3 0.625
-3.5 0.156
-4 0 …

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