The input control parameter of a JFET is __________________?

Related Mcqs:

1. A JFET has high input impedance because _________________?

   A. it is made of semiconductor material
   B. input is reverse biased
   C. of impurity atoms
   D. none of the above

2. In class A operation, the input circuit of a JFET is ____________ biased?

   A. forward
   B. reverse
   C. not
   D. none of the above

3. A JFET is also called____________ transistor?

   A. unipolar
   B. bipolar
   C. unijunction
   D. none of the above

4. A JFET is a__________ driven device?

   A. current
   B. voltage
   C. both current and voltage
   D. none of the above

5. The pinch-off voltage of a JFET is about _______________?

   A. 5 V
   B. 0.6 V
   C. 15 V
   D. 25 V

6. The transconductance of a JFET ranges from ________________?

   A. 100 to 500 mA/V
   B. 500 to 1000 mA/V
   C. 0.5 to 30 mA/V
   D. above 1000 mA/V

7. A CS JFET amplifier has a load resistance of 10 kO , RD= 820O . If gm= 5mS and Vin= 500 mV, the output signal voltage is__________________?

   A. 2.05 V
   B. 25 V
   C. 0.5 V
   D. 1.89 V

8. A MOSFET differs from a JFET mainly because _________________?

   A. of power rating
   B. the MOSFET has two gates
   C. the JFET has a pn junction
   D. none of the above

9. The channel of a JFET is between the ________________?

   A. gate and drain
   B. drain and source
   C. gate and source
   D. input and output

10. In a JFET, IDSS is known as ________________?

    A. drain to source current
    B. drain to source current with gate shorted
    C. drain to source current with gate open
    D. none of the above