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

26. The input resistance of JFET ideally approaches

   A.Zero

   B.5 ohms

   C.200 ohms

   D.Infinity

27. For a JFET, above the pinch-off voltage, the

   A.Drain current remains constant

   B.Drain current decreases

   C.Drain current increases

   D.Drain current varies parabolically

28. For holding the drain current constant inspite of large changes in JFET parameters

   A.Current source bias is used

   B.Reverse bias is used

   C.Voltage divider bias is used

   D.No bias is used

29. JFETs cascode means

   A.Two FETs connected in parallel

   B.A common gate driving a common source connection

   C.A common gate source driving a common gate connection

   D.None of the above

30. The operation of a JFET involves a flow of

   A.Recombination carriers

   B.Majority carriers

   C.Minority carriers

   D.Any of the above

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