Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion

Discussion Forum : Electronic Devices and Circuits - Section 5 (Q.No. 24)
24.
For a n-channel JFET with r0 = 10 kW, (VGs= 0 V, VP = - 6 V)the drain resistance rd at VGS= - 3 V is given by
40 kΩ
2.5 kΩ
4.44 kW
120 kW
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Cheng said:   4 years ago
rd = (r0)/(1-Vgs/Vp)^2.
= 10000/(1-(-3/-6))^2,
= 40000.
(2)

Pallavi said:   5 years ago
I think it may be r0/(vgs/vp) ^2.

Kavita said:   6 years ago
Please explain the answer.

First said:   9 years ago
rd is defined as the resistance at a particular level. Now to get rd, you can use the formula r0/(1-(Vgs/Vp))^2.

Where r0 is the resistance at 0 Vgs.

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