Transistor Amplifier Analysis Questions

The video tutorial covers AC-DC analysis of a multi-stage amplifier, focusing on finding resistor values RE1 and RE2 through DC analysis and Thevenin equivalents. It then calculates small signal parameters for transistors T1 and T2, followed by AC analysis and drawing the equivalent model. The tutorial concludes with calculating the total amplification of the circuit, emphasizing the importance of understanding input and output resistances and voltage gain.

What is the value of beta given in the AC-DC analysis of the multi-stage amplifier?

• 250

• 200

• 150

• 100

In the DC analysis, what is the calculated value of RE1?

• 1.5kΩ

• 4.0kΩ

• 2.8kΩ

• 3.2kΩ

What is the Thevenin equivalent resistance RThevenin2 calculated during the DC analysis for RE2?

• 50kΩ

• 100kΩ

• 25kΩ

• 75kΩ

What is the value of rπ1 for transistor T1 in the small signal parameter analysis?

• 7.0kΩ

• 6.5kΩ

• 5.2kΩ

• 4.5kΩ

During the small signal parameter analysis, what is the transconductance gm1 for T1?

• 30.77mS

• 28.46mS

• 40.00mS

• 38.46mS

In the AC analysis, what type of amplifier is T1 identified as?

• Differential

• Common Collector

• Common Base

• Common Emitter

What is the calculated input resistance Rin1 for the common emitter amplifier T1?

• 5.15kΩ

• 6.4kΩ

• 7.2kΩ

• 3.85kΩ

What is the overall voltage gain AV of the entire circuit?

• -60.0 V/V

• -47.4 V/V

• -50.0 V/V

• -55.2 V/V

What is the output resistance Rout2 for the common collector amplifier T2?

• 30.0Ω

• 49.7Ω

• 40.0Ω

• 60.0Ω

What is the amplification factor of the common collector amplifier T2?

• 2 V/V

• 0.5 V/V

• 1 V/V

• 1.5 V/V