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- Subject
- Field Effect Transistors - FETelectrical-engineering-mcqs › field-effect-transistors-fet
- Published
- 22 Dec 2018
- Last updated
- 28 May 2026
Explanation
The channel of a JFET is the region through which current flows, and it is situated between the drain and source terminals. The gate controls the conductivity of this channel by varying the voltage, but it is not part of the channel itself.
More Field Effect Transistors - FET MCQs
Practice related questions from the same subject.
- 1.Which JFET configuration corresponds to the common base setup in a PNP transistor?
- 2.In a JFET, what does the term IDSS represent?
- 3.For a common-source JFET amplifier with RD = 1 kΩ, RS = 560 Ω, VDD = 10 V, and transconductance gm = 4500 µS, what is the voltage gain if the source resistor is fully bypassed?
- 4.For a p-channel enhancement-mode MOSFET with a threshold voltage (V_GS(th)) of -2V, what is the drain current when the gate-to-source voltage (V_GS) is 0V?
- 5.A D-MOSFET has a gate-to-source voltage (VGS) of 0 V. Given that the datasheet lists IDSS as 20 mA and VGS(off) as -5 V, what is the expected drain current (ID)?
- 6.What happens to the JFET channel when it reaches the cut-off condition?
- 7.If a JFET datasheet specifies the cutoff gate-source voltage (VGS(off)) as -4 V, what is the value of the pinch-off voltage (Vp)?
- 8.In a JFET, the source terminal is analogous to which part of a vacuum tube?
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