Which of the following is not associated with a p-n junction?

Related Mcqs:

1. Which of the following amplifier circuit using junction transistor has the best gain?

   A. Common base
   B. Common emitter
   C. Common collector
   D. All have the same gain

2. In a p-n junction diode under reverse bias , the magnitude of electric field is maximum at_____________?

   A. the edge of the depletion region on the p-side
   B. the edge of the depletion region on the n-side
   C. the p-n junction
   D. the center of the depletion region on the n-side

3. The early effect in a bipolar junction transistor is caused by_______________?

   A. fast turn-on
   B. fast turn-off
   C. large collector-base reverse bias
   D. large emitter-base forward bias

4. Thermal runaway is not possible in FET because as the temperature of FET increases_________________?

   A. the mobility decreases
   B. the transconductance increases
   C. the drain current increases
   D. none of the above

5. Most of the linear ICs are based on the two-transistor differential amplifier because of its___________?

   A. input voltage dependent linear transfer characteristic
   B. high voltage gain
   C. high input resistance
   D. high CMRR

6. Voltage Series feedback also called series-shunt feedback) results in__________?

   A. Increase in both input & output impedances
   B. Decreases in both input & output impedances
   C. Increase in input impedance & decreases in output impedance
   D. Decrease in input impedance & increase in output impedance

7. The current gain of a bipolar transistor drops at high frequencies because of____________?

   A. Transistor capacitances
   B. High current effects in the base
   C. Parasitic inductive elements
   D. The early effect

8. In a CB amplifier the maximum efficiency could be____________?

   A. 99%
   B. 85%
   C. 50%
   D. 25%

9. The horizontal intercept of dc load line is the same as ideal____________?

   A. cut off point
   B. saturation point
   C. operating point
   D. quasi saturation point

10. The MOSFET switch in its on-state may be considered equivalent to_____________?

    A. resistor
    B. inductor
    C. capacitor
    D. battery