Class _____________ operation gives the maximum distortion?

Related Mcqs:

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

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

2. If the gain versus frequency curve of a transistor amplifier is not flat, then there is distortion ?

   A. Amplitude
   B. Intermodulation
   C. Frequency
   D. None of the above

3. In class A operation, the operating point is generally located_____________of the d.c. load line?

   A. At cut off point
   B. At the middle
   C. At saturation point
   D. None of the above

4. For the same a.c. power output as above, what should be the minimum power rating of transistor for class B operation?

   A. 10 W
   B. 4 W
   C. 8 W
   D. None of the above

5. The maximum efficiency of transformer coupled class A power amplifier is _______________?

   A. 30%
   B. 50%
   C. 80%
   D. 45%

6. The maximum efficiency of resistance loaded class A power amplifier is _________________?

   A. 5%
   B. 50%
   C. 30%
   D. 25%

7. 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

8. An aeroplane of wingspan 10m flies from the equator towards the North Pole. The wings are perpendicular to the vertical component of the earths magnetic field (B = 4×10-5T). At maximum speed an emf of 96mV is induced across the wing tips. The maximum speed of the aeroplane is____________?

   A. 150msec-1
   B. 384msec-1
   C. 38.4msec-1
   D. 200msec-1

9. If a transistor is operated in such a way that output current flows for 60o of the input signal, then it is ______________ operation?

   A. Class A
   B. Class B
   C. Class C
   D. None of the above

10. The push-pull circuit must use ______________ operation?

    A. Class A
    B. Class C
    C. Class B
    D. Class AB