Class_____________ power amplifier has the highest collector efficiency ?

Related Mcqs:

1. What will be the collector efficiency of a power amplifier having zero signal power dissipation of 5 watts and a.c. power output of 2 watts ?

   A. 20% B. 80% C. 40% D. 50%...

2. If the power rating of a transistor is 1W and collector current is 100mA, then maximum allowable collector voltage is________________?

   A. 1V B. 100V C. 20V D. 10V...

3. If the maximum collector current due to signal alone is 3 mA, then zero signal collector current should be at least equal to___________________?

   A. 6 mA B. mA C. 3 mA D. 1 mA...

4. If the collector supply is 10V, then collector cut off voltage under d.c. conditions is _______________?

   A. 20 V B. 5 V C. 2 V D. 10 V...

5. A 2-transistor class B power amplifier is commonly called ______________ amplifier?

   A. Dual B. Push-pull C. Symmetrical D. Differential...

6. The maximum a.c. power output from a class A power amplifier is 10 W. What should be the minimum power rating of the transistor used ?

   A. 10 W B. 15 W C. 5 W D. 20 W...

7. In a single stage transistor amplifier, RC and RL represent collector resistance and load resistance respectively. The transistor sees a d.c. load of _____________________?

   A. RC + RL B. RC || RL C. RL D. RC...

8. If RC and RL represent the collector resistance and load resistance respectively in a single stage transistor amplifier, then a.c. load is____________________?

   A. RL + RC B. RC || RL C. RL – RC D. RC...

9. The value of collector load RC in a transistor amplifier is _______________the output impedance of the transistor?

   A. The same as B. Less than C. More than D. None of the above...

10. A single stage transistor amplifier with collector load RC and emitter resistance RE has a d.c. load of ________________________?

    A. RC B. RC || RE C. RC – RE D. RC + RE...