A transistor amplifier has high output impedance because ______________?

Related Mcqs:

1. 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...

2. If a transistor amplifier draws 2mA when input voltage is 10 V, then its input impedance is ____________?

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

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

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

4. The ratio of output impedance of a CE amplifier is _______________?

   A. About 1 B. Low C. High D. Moderate...

5. 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...

6. In order to get more voltage gain from a transistor amplifier, the transistor used should have_________________?

   A. Thin base B. Thin collector C. Wide emitter D. None of the above...

7. What turn ratio (Np/Ns) of transformer is required to match 4 O speaker to a transistor having an output impedance of 8000 O ?

   A. 2 B. 7 C. 3 D. None of the above...

8. The output power of a transistor amplifier is more than the input power because the additional power is supplied by__________________?

   A. Transistor B. Biasing circuit C. Collector supply VCC D. None of the above...

9. 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...

10. It is generally desired that a transistor should have_____________________ input impedance?

    A. Low B. Very low C. High D. Very high...