A. Gives distorted output
B. Gives low power output
C. Requires a transformer
D. None of the above
Related Mcqs:
- CC configuration is used for impedance matching because its ________________?
A. Input impedance is very high
B. Input impedance is low
C. Output impedance is very low
D. None of the above - In transistor amplifiers, we use_____________transformer for impedance matching?
A. Step up
B. Step down
C. Same turn ratio
None of the above - The ratio of output impedance of a CE amplifier is _______________?
A. About 1
B. Low
C. High
D. Moderate - 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 - 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 - It is generally desired that a transistor should have_____________________ input impedance?
A. Low
B. Very low
C. High
D. Very high - 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 - 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 - Which of the following is the disadvantage of electric traction over other systems of traction ?
A. Corrosion problems in the under-ground pipe work
B. Short time power failure interrupts traffic for hours
C. High capital outlay in fixed installations beside route limitation
D. Interference with communication lines
C. All of the above - The disadvantage of base resistor method of transistor biasing is that it_________________?
A. Is complicated
B. Is sensitive to changes in ß
C. Provides high stability
D. None of the above
