If the gate of a JFET is made less negative, the width of the conducting channel__________________?

Related Mcqs:

1. 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

2. The gate of a JFET is ___________ biased?

   A. reverse
   B. forward
   C. reverse as well as forward
   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. A JFET is similar in operation to ___________ valve?

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

5. A JFET is also called____________ transistor?

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

6. 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

7. In a p-channel JFET, the charge carriers are _____________?

   A. electrons
   B. holes
   C. both electrons and holes
   D. none of the above

8. A MOSFET is sometimes called______________ JFET?

   A. many gate
   B. open gate
   C. insulated gate
   D. shorted gate

9. 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

10. 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