27.6.2. Voltage Gain with Emitter Resistor

Try these first

1. 1.

   Define voltage gain in terms of output voltage and input voltage.

   Hint

   Think about the ratio of signal output to input.

2. 2.

   What role does an emitter resistor play in a CE amplifier?

   Hint

   Consider effects on both stability and gain.

3. 3.

   What is the equation for voltage gain in a common emitter amplifier?

   Hint

   Remember the terms used in defining voltage gain.

4. 4.

   True or False: The presence of the emitter resistor increases the voltage gain of the amplifier.

   • True
   • False

   Hint

   Think about the effects of adding resistors in feedback paths.

5. 5.

   Design a common emitter amplifier with specified gain requirements while ensuring stability for varying beta. Discuss resistor values.

   Hint

   Focus on the trade-offs between resistor sizes affecting both gain and stability.

6. 6.

   Given a signal input of 100 mV, evaluate the output for a designed CE amplifier with gain set at -10. How does R_E impact this in a real situation?

   Hint

   Apply the gain formula while considering realistic resistor values.