A common emitter amplifier has:

A common emitter amplifier has:

Question 1 of 270705eh1Tj01v0dcWmyszEwN

A common emitter amplifier has:

Question 1 of 27070

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Study area:

Q

A common emitter amplifier has:

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🔍 Key Concepts

• Relationship between input impedance and configuration (common emitter, common base, common collector) • Relative voltage gain of the three basic BJT configurations • Relative current gain of common base vs common emitter

💭 Think About

• Compare, from memory or notes, which configuration (emitter, base, or collector) typically has the highest voltage gain • Think about which configuration is often used as a buffer and what that implies about its voltage gain • Recall how current gain (β or α) relates between common emitter and common base configurations

✅ Before You Answer

• Know that common collector is often called an emitter follower and what that means for voltage gain (~1 or less than 1) • Remember that common base has very low input impedance compared to the other configurations • Verify which configuration (common emitter or common base) has the larger current gain based on β and α relationships