41.1.3. Indian Institute of Technology, Kharagpur

Try these first

1. 1.

   What does CE stand for in amplifier terminology?

   Hint

   Think about the transistor configuration.

2. 2.

   What component is used to couple signals in an amplifier?

   Hint

   It helps transmit AC while blocking DC.

3. 3.

   What is the primary purpose of a coupling capacitor in an amplifier?

   • To amplify the signal
   • To block DC components
   • To store electrical energy

   Hint

   Remember what happens to a capacitor with DC signals.

4. 4.

   True or False: A lower cutoff frequency is determined by the first pole in the frequency response.

   • True
   • False

   Hint

   Think about how poles determine frequency cutoff.

5. 5.

   Design a CE amplifier circuit with specified resistor and capacitor values to achieve a target gain of 15. Show all calculations and justify your choice of components.

   Hint

   Use gain = R2/R1 for simple ideal configurations.

6. 6.

   Analyze the frequency response of an amplifier circuit where capacitors C1 and C2 have conflicting roles in the frequency response - one allows low frequencies while the other blocks them - explain how this affects overall performance.

   Hint

   Examine each capacitor's threshold frequency against the load to discern their roles.