A. 8 db
B. 6 db
C. 5 db
D. 4 db
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Related Mcqs:
- What will be the collector efficiency of a power amplifier having zero signal power dissipation of 5 watts and a.c. power output of 2 watts ?
- A. 20% B. 80% C. 40% D. 50%...
- 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...
- 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...
- The output signal voltage and current of a power amplifier are 5V and 200 mA; the values being r.m.s. What is the power output ?
- A. 1 W B. 2 W C. 4 W 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...
- A 2-transistor class B power amplifier is commonly called ______________ amplifier?
- A. Dual B. Push-pull C. Symmetrical D. Differential...
- If the power level of an amplifier reduces to half, the db gain will fall by___________?
- A. 5 db B. 2 db C. 10 db D. 3 db...
- 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...
- If the power and current gains of a transistor amplifier are 16500 and 100 respectively, then voltage gain is_____________________?
- A. 165 B. 165 x 104 C. 100 D. None of the above...
- If the maximum collector current due to signal alone is 3 mA, then zero signal collector current should be at least equal to___________________?
- A. 6 mA B. mA C. 3 mA D. 1 mA...
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