A. Step up
B. Step down
C. Same turn ratio
None of the above
Related Mcqs:
- Power amplifiers handle ______________ signals compare to voltage amplifiers?
A. Small
B. Very small
C. Large
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 - 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 - 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 generally use______________ capacitors?
A. Electrolytic
B. Mica
C. Paper
D. Air - 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 - For faithful amplification by a transistor circuit, the value of VBE should_____________for a silicon transistor?
A. Be zero
B. Be 0.01 V
C. Not fall below 0.7 V
D. Be between 0 V and 0.1 V
Advertisement