At the base-emitter junctions of a transistor, one finds___________?

Related Mcqs:

1. In a transistor, the base current is about_________of emitter current?

   A. 25%
   B. 20%
   C. 35 %
   D. 5%

2. As the temperature of a transistor goes up, the base-emitter resistance___________?

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

3. The phase difference between the input and output voltages of a transistor connected in common emitter arrangement is___________?

   A. 0o
   B. 180o
   C. 90o
   D. 270o

4. The emitter of a transistor is___________doped?

   A. lightly
   B. heavily
   C. moderately
   D. none of the above

5. The collector-base junction in a transistor has___________?

   A. forward bias at all times
   B. reverse bias at all times
   C. low resistance
   D. none of the above

6. The base of a transistor is____________doped?

   A. heavily
   B. moderately
   C. lightly
   D. none of the above

7. The voltage gain in a transistor connected in___________arrangement is the highest?

   A. common base
   B. common collector
   C. common emitter
   D. none of the above

8. The power gain in a transistor connected in___________arrangement is the highest?

   A. common emitter
   B. common base
   C. common collector
   D. none of the above

9. A heat sink is generally used with a transistor to______________?

   A. increase the forward current
   B. decrease the forward current
   C. compensate for excessive doping
   D. prevent excessive temperature rise

10. The output impedance of a transistor is____________?

    A. high
    B. zero
    C. low
    D. very low