22.1.1. Overview and Topics Covered

Try these first

1. 1.

   What is the primary function of an amplifier?

   Hint

   Think about what you need to do when you want to make a signal stronger.

2. 2.

   Name one type of amplifier.

   Hint

   Recall the amplifiers we discussed today.

3. 3.

   What does a voltage amplifier primarily do?

   • Increases current only
   • Increases voltage only
   • Increases both current and voltage

   Hint

   Think about what type of signal it focuses on.

4. 4.

   True or False: A trans-conductance amplifier can control output voltage.

   • True
   • False

   Hint

   Consider the term 'trans-conductance' and what it signifies.

5. 5.

   Given a voltage amplifier with a gain of 10 and an input voltage of 0.5V, what is the output voltage when connected to a load that causes a 20% drop in the signal due to loading effects?

   Hint

   First calculate the ideal output, then adjust for loading.

6. 6.

   If you cascade two voltage amplifiers where the first has a gain of 5 and the second a gain of 3, what is the total gain considering an output load that reduces the final output voltage by 15%?

   Hint

   Remember to calculate the overall gain first before applying the loading effect.