When an NPN transistor is operating as a...

Question 1 / 20X3vGOBz8v9qx0fGuLT7F

Question 1 of 20X3vGOBz8v9qx0fGuLT7F

When an NPN transistor is operating as a Class A amplifier, the base-emitter junction:

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Question 1 of 20

X3vGOBz8v9qx0fGuLT7F

When an NPN transistor is operating as a Class A amplifier, the base-emitter junction:

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🔍 Key Concepts

• Class A amplifier biasing for bipolar junction transistors (BJTs) • Conduction path in an NPN transistor (emitter–base–collector) under normal active operation • Meaning of forward biased vs reverse biased PN junctions in a BJT used as a linear amplifier

💭 Think About

• In normal active (linear) operation of an NPN transistor, which junction must allow current to flow easily so that small base current changes control a larger collector current? • For a transistor to stay in its linear (Class A) region and not in cutoff or saturation, how is the collector-base junction typically biased? • If both transistor junctions were forward biased, would that look more like saturation, cutoff, or linear amplification?

✅ Before You Answer

• Confirm how an NPN transistor is oriented: emitter (N), base (P), collector (N), and which side of each junction is connected to the more positive potential in active operation. • Verify which junction condition (forward bias) corresponds to a low resistance, current-controlling input, and which (reverse bias) corresponds to a high resistance, output region for voltage amplification. • Eliminate any option where the bias conditions would force the transistor into saturation (both junctions forward biased) or cutoff (both junctions reverse biased), rather than active (Class A) operation.

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Question 1 of 20

When an NPN transistor is operating as a Class A amplifier, the base-emitter junction:

And collector-base junction are both forward biased.

And collector-base junction are both reverse biased.

Is reverse biased and the collector-base junction is forward biased.

Is forward biased and the collector-base junction is reverse biased.

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Question 1 / 20X3vGOBz8v9qx0fGuLT7F

Question 1 of 20X3vGOBz8v9qx0fGuLT7F

When an NPN transistor is operating as a Class A amplifier, the base-emitter junction:

Back

Question 1 of 20

X3vGOBz8v9qx0fGuLT7F

When an NPN transistor is operating as a Class A amplifier, the base-emitter junction:

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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