CC configuration is used for impedance matching because its ________________?

Related Mcqs:

1. The disadvantage of impedance matching is that it _______________?

   A. Gives distorted output
   B. Gives low power output
   C. Requires a transformer
   D. None of the above

2. In transistor amplifiers, we use_____________transformer for impedance matching?

   A. Step up
   B. Step down
   C. Same turn ratio
   None of the above

3. 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

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

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

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

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

6. A transistor amplifier has high output impedance because ______________?

   A. Emitter is heavily doped
   B. Collector has reverse bias
   C. Collector is wider than emitter or base
   D. None of the above

7. 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

8. 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

9. An amplifier has a power gain of 100. Its db gain is ________________?

   A. 10 db
   B. 20 db
   C. 40 db
   D. None of the above

10. The maximum collector efficiency of class B operation is ________________?

    A. 50%
    B. 90%
    C. 5%
    D. 5%