Related Mcqs:

1. A certain p-channel E-MOSFET has VGS(th) = -2V. If VGS= 0V, the drain current is ____________?

   A. 0 mA
   B. ID(on)
   C. maximum
   D. IDSS

2. 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

3. 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

4. In a certain common-source D-MOSFET amplifier, Vds =3.2 V r.m. and Vgs = 280 mV r.m.s. The voltage gain is_______________?

   A. 1
   B. 11.4
   C. 8.75
   D. 3.2

5. For VGS = 0 V, the drain current becomes constant when VDS exceeds ________________?

   A. cut off
   B. VDD
   C. VP
   D. V

6. A n-channel D-MOSFET with a positive VGS is operating in _______________?

   A. the depletion-mode
   B. the enhancement-mode
   C. cut off
   D. saturation

7. 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

8. If the cross-sectional area of the channel in n-channel JEFT increases, the drain current _____________?

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

9. A MOSFET uses the electric field of a _______________to control the channel current?

   A. capacitor
   B. battery
   C. generator
   D. none of the above

10. 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