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

Related Mcqs:

1. 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...

2. 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...

3. 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...

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

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

5. 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...

6. 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...

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. 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...

9. In a certain CS JFET amplifier, RD= 1kO , RS= 560 O , VDD=10V and gm= 4500 µS. If the source resistor is completely bypassed, the voltage gain is ________________?

   A. 450 B. 45 C. 2.52 D. 4.5...

10. If the reverse bias on the gate of a JFET is increased, then width of the conducting channel ______________?

    A. is decreased B. is increased C. remains the same D. none of the above...