Electrical Engineering Mcqs
Question: If the power and current gains of a transistor amplifier are 16500 and 100 respectively, then voltage gain is_____________________?
- 1. 165
- 2. 165 x 104
- 3. 100
- 4. None of the above
Question: In a CE amplifier, the phase difference between voltage across collector load RC and signal voltage is _________________?
- 1. 180o
- 2. 270o
- 3. 90o
- 4. 0o
Question: In a single stage transistor amplifier, RC and RL represent collector resistance and load resistance respectively. The transistor sees a d.c. load of _____________________?
- 1. RC + RL
- 2. RC || RL
- 3. RL
- 4. RC
Question: When a transistor amplifier is operating, the current in any branch is _______________?
- 1. Sum of a.c. and d.c.
- 2. c. only
- 3. c. only
- 4. difference of a.c. and d.c.
Question: The phase difference between the output and input voltages of a CE amplifier is _____________?
- 1. 180o
- 2. 0o
- 3. 90o
- 4. 270o
Question: If the collector supply is 10V, then collector cut off voltage under d.c. conditions is _______________?
- 1. 20 V
- 2. 5 V
- 3. 2 V
- 4. 10 V
Question: The input capacitor in an amplifier is the______________ capacitor?
- 1. Coupling
- 2. Bypass
- 3. Leakage
- 4. None of the above
Question: The slope of a.c. load line is ______________ that of d.c. load line?
- 1. The same as
- 2. More than
- 3. Less than
- 4. None of the above
Question: When an a.c. signal is applied to an amplifier, ,the operating point moves along_________________?
- 1. c. load line
- 2. c. load line
- 3. both d.c. and a.c. load lines
- 4. none of the above
Question: A single stage transistor amplifier contains______________ and associated circuitry?
- 1. Two transistors
- 2. One transistor
- 3. Three transistor
- 4. None of the above