If load resistance in the above question (Q.49) is removed, the output voltage will_____________?

Related Mcqs:

1. 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

2. When drain voltage equals the pinch-off-voltage, then drain current ___________ with the increase in drain voltage?

   A. decreases
   B. increases
   C. remains constant
   D. none of the above

3. A certain common-source JFET has a voltage gain of 10. If the source bypass capacitor is removed, ______________?

   A. the voltage gain will increase
   B. the transconductance will increase
   C. the voltage gain will decrease
   D. the Q-point will shift

4. In a JFET, when drain voltage is equal to pinch-off voltage, the depletion layers ______________?

   A. almost touch each other
   B. have large gap
   C. have moderate gap
   D. none of the above

5. The pinch-off voltage in a JFET is analogous to _____________ voltage in a vacuum tube?

   A. anode
   B. cathode
   C. grid cut off
   D. none of the above

6. The gate voltage in a JFET at which drain current becomes zero is called ______________ voltage?

   A. saturation
   B. pinch-off
   C. active
   D. cut-off

7. n a common-source JFET amplifier, the output voltage is _____________?

   A. 180o out of phase with the input
   B. in phase with the input
   C. 90o out of phase with the input
   D. taken at the source

8. The output characteristics of a JFET closely resemble the output characteristics of a ___________ valve?

   A. pentode
   B. tetrode
   C. triode
   D. diode

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

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

10. A certain JFET data sheet gives VGS(off) = -4 V. The pinch-off voltage Vp is _____________?

    A. +4 V
    B. -4 V
    C. dependent on VGS
    D. data insufficient