If the input capacitor of a transistor amplifier is short-circuited, then_________________?

Related Mcqs:

1. The input capacitor in an amplifier is the______________ capacitor?

   A. Coupling
   B. Bypass
   C. Leakage
   D. None of the above

2. 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

3. 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

4. In a single stage transistor amplifier, RC and RL represent collector resistance and load resistance respectively. The transistor sees a d.c. load of _____________________?

   A. RC + RL
   B. RC || RL
   C. RL
   D. RC

5. In order to get more voltage gain from a transistor amplifier, the transistor used should have_________________?

   A. Thin base
   B. Thin collector
   C. Wide emitter
   D. None of the above

6. 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

7. A series resonant band-stop filter consists of a 68 Ω resistor, a 110 mH coil, and a 0.02 µF capacitor. The internal resistance, RW, of the coil is 4 Ω. Input voltage is 200 mV. Output voltage is taken across the coil and capacitor in series. What is the output voltage magnitude at f0?

   A. 1.1 mV
   B. 11.1 mV
   C. 111 mV
   D. 200 mV

8. A 2-transistor class B power amplifier is commonly called ______________ amplifier?

   A. Dual
   B. Push-pull
   C. Symmetrical
   D. Differential

9. 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

10. The purpose of emitter capacitor (i.e. capacitor across RE) is to ______________?

    A. Avoid voltage gain drop
    B. Forward bias the emitter
    C. Reduce noise in the amplifier
    D. None of the above