52.1.3. Indian Institute of Technology, Kharagpur

Try these first

1. 1.

   What is the primary function of a common base amplifier?

   Hint

   Think about where the input and output are located.

2. 2.

   Define biasing in amplifiers.

   Hint

   Consider the amplifier's operational state.

3. 3.

   What is an advantage of common base amplifiers?

   • High input impedance
   • Low input impedance
   • Increased voltage gain

   Hint

   Think about how the input is connected.

4. 4.

   True or False: The common gate amplifier configuration allows for voltage signal amplification.

   • True
   • False

   Hint

   Consider the symptoms of low input impedance.

5. 5.

   In a given circuit with a common base amplifier, you have 10 kΩ for RC, and the signal is 5 mA. Calculate the collector voltage drop and the resulting output voltage.

   Hint

   Make sure to figure out the actual current flowing first.

6. 6.

   Determine the voltage gain for a common gate amplifier given the parameters: gm = 2 mA/V, Re = 1 kΩ using the input-output calculations.

   Hint

   Review small signal model principles.