Junction Field Effect Transistor (JFET) Multiple Choice Questions And Answers


46. The JFET is also known as square law device because its


   A.Drain current varies as square of the gate source voltage

   B.Transconductance curve is parabolic

   C.Reverse gate leakage current varies as square of reverse gate voltage

   D.Drain current varies as square of its drain voltage for a fixed Vgs


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B.Transconductance curve is parabolic

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47. The charge carriers in an N-channel JFET are


   A.Electrons

   B.Neutrons

   C.Protons

   D.Holes


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A.Electrons

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48. The preferred from of biasing a JFET amplifier is ..... bias


   A.Self

   B.Drain

   C.Source

   D.Gate


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C.Source

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49. As compared to a bipolar transistor, a JFET is


   A.Equally sensitive to changes in input voltage

   B.More sensitive changes in input voltage

   C.Less sensitive changes in input voltage

   D.Highly sensitive to changes in input voltage


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C.Less sensitive changes in input voltage

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50. In saturation region JFET acts like a


   A.Switch

   B.Short circuit

   C.Bipolar device

   D.Resistance


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D.Resistance

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