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  • EEE 334 Circuits II – Quz 6: BJT Amplifiers | Que
  • EEE 334 Circuits II – Quz 6: BJT Amplifiers | Que
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EEE 334 Circuits II – Quiz 6: BJT Amplifiers | Questions & Detailed Answers | Transistor Biasing, Small-Signal Analysis & Gain | 2026/2027 update.

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Institution EEE 334 Circuits II – Quz 6: BJT Amplifiers | Que
Course EEE 334 Circuits II – Quz 6: BJT Amplifiers | Que
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EEE 334 CIRCUITS II – QUIZ 6: BJT AMPLIFIERS | QUESTIONS & DETAILED ANSWERS | TRANSISTOR BIASING, SMALL-SIGNAL ANALYSIS & GAIN | 2026/2027 UPDATE. This EEE 334 Circuits II Quiz 6 resource from Arizona State University focuses on BJT amplifier analysis and transistor fundamentals. Topics include BJT operating regions, NPN transistor circuits, transistor biasing, DC operating-point analysis, Thevenin equivalent circuits, collector and emitter currents, small-signal parameters, transconductance, voltage gain, current gain, and common-emitter amplifier analysis. Designed for comprehensive Circuits II review, this resource provides focused questions and detailed answers covering essential BJT amplifier concepts and practical circuit calculations.

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,
, EEE 334 Circuits II – Quiz 6: BJT Amplifiers |
Questions & Detailed Answers | Transistor
Biasing, Small-Signal Analysis & Gain |
2026/2027 update.

SECTION 1: BJT SMALL-SIGNAL MODELS &
PARAMETERS (Questions 1–10)
1. A BJT amplifier is biased at I_C = 2 mA. If the thermal voltage V_T
= 25 mV, what is the small-signal transconductance g_m?

A) 80 mS
B) 40 mS
C) 20 mS
D) 100 mS

Correct Answer: A

Rationale: The transconductance is g_m = I_C / V_T = 2 mA / 25 mV = 0.08
S = 80 mS. This is a fundamental small-signal parameter for BJT amplifier
analysis .

Source: EEE 334 Quiz 6: BJT Amplifiers




2. The quantity r'_e (internal AC emitter resistance) can be
calculated as:

A) β / I_E
B) 25 mV / I_E (at room temperature)
C) V_CE / I_C
D) V_CC / R_C

Correct Answer: B

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