21. The purpose of capacitors in a transistor amplifier is to ___________ A. Protect the transistor B. Cool the transistor C. Couple or bypass a.c. component D. Provide biasing Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
22. The purpose of a coupling capacitor in a transistor amplifier is to ___________ A. Increase the output impedance of transistor B. Protect the transistor C. Pass a.c. and block d.c. D. Provide biasing Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
23. If the input capacitor of a transistor amplifier is short-circuited, then A. Transistor will be destroyed B. Biasing conditions will change C. Signal will not reach the base D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
24. The phase difference between the output and input voltages of a CE amplifier is ___________ A. 180° B. 0° C. 90° D. 270° Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
25. The ratio of output impedance of a CE amplifier is ___________ A. About 1 B. Low C. High D. Moderate Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
26. In a CE amplifier, the phase difference between voltage across collector load RC and signal voltage is ___________ A. 180° B. 270° C. 90° D. 0° Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
27. In the d.c. equivalent circuit of a transistor amplifier, the capacitors are considered ___________ A. Short B. Open C. Partially short D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
28. In the a.c. equivalent circuit of a transistor amplifier, the capacitors are considered ___________ A. Short B. Open C. Partially open D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
29. The purpose of d.c. conditions in a transistor is to ___________ A. Reverse bias the emitter B. Forward bias the collector C. Set up operating point D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
30. 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 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
