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What is the value of transconductance when the reverse gate voltage of JFET changes from 4.0 to 3.9 V and the drain current changes from 1.3 to 1.6 mA?
  • a)
    3 mΩ
  • b)
    1 mΩ
  • c)
    2.5 mΩ
  • d)
    3.5 mΩ
Correct answer is option 'A'. Can you explain this answer?
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The value of transconductance (gm) can be calculated using the formula:

gm = ΔID / ΔVG

Where ΔID is the change in drain current and ΔVG is the change in gate voltage.

In this case, ΔID = 1.6 mA - 1.3 mA = 0.3 mA
And ΔVG = 3.9 V - 4.0 V = -0.1 V

So, gm = 0.3 mA / -0.1 V = -3 mA/V

Therefore, the value of transconductance is -3 mA/V.
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What is the value of transconductance when the reverse gate voltage of JFET changes from 4.0 to 3.9 V and the drain current changes from 1.3 to 1.6 mA?a)3 mΩb)1 mΩc)2.5 mΩd)3.5 mΩCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about What is the value of transconductance when the reverse gate voltage of JFET changes from 4.0 to 3.9 V and the drain current changes from 1.3 to 1.6 mA?a)3 mΩb)1 mΩc)2.5 mΩd)3.5 mΩCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the value of transconductance when the reverse gate voltage of JFET changes from 4.0 to 3.9 V and the drain current changes from 1.3 to 1.6 mA?a)3 mΩb)1 mΩc)2.5 mΩd)3.5 mΩCorrect answer is option 'A'. Can you explain this answer?.
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