As shown in figure "C" of the illustration,...

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Question 1 of 2066636eed28f7522a1c51da9b

As shown in figure "C" of the illustration, what are the purposes of the coupling capacitor Cc and the bypass capacitor Cbp respectively? Illustration EL-0045

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Question 1 of 20

66636eed28f7522a1c51da9b

As shown in figure "C" of the illustration, what are the purposes of the coupling capacitor Cc and the bypass capacitor Cbp respectively? Illustration EL-0045

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🔍 Key Concepts

• Coupling capacitor (Cc) in transistor amplifier input stages – what it passes and what it blocks between stages or from a signal source • Emitter bypass capacitor (Cbp) across an emitter resistor and its effect on AC gain and emitter degeneration (negative feedback) • Difference between AC signal behavior and DC bias conditions in this circuit

💭 Think About

• Look at how Cc is connected between the input source and the transistor’s base. If you replaced Cc with a wire, what DC path would exist, and why might that be a problem for the bias network R1–R2? • Now look at Cbp across R3. For DC, does Cbp conduct? For AC, what does a capacitor look like at the signal frequency, and how does that change the effective emitter resistance seen by the AC signal? • Ask yourself: when the AC emitter resistance is reduced by Cbp, does that increase or decrease emitter degeneration (negative feedback) and therefore the AC gain?

✅ Before You Answer

• Verify whether Cc is in series with the input signal and isolates the biasing network from any DC from the previous stage/source. • Check whether Cbp is in parallel with R3 and therefore can bypass R3 for AC while leaving DC bias set by R3. • Confirm which option says: "Cc deals with DC components of the input" and "Cbp acts to reduce (not increase) AC degeneration to boost amplifier gain."

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Question 1 of 2066636eed28f7522a1c51da9b

As shown in figure "C" of the illustration, what are the purposes of the coupling capacitor Cc and the bypass capacitor Cbp respectively? Illustration EL-0045

Back

Question 1 of 20

66636eed28f7522a1c51da9b

As shown in figure "C" of the illustration, what are the purposes of the coupling capacitor Cc and the bypass capacitor Cbp respectively? Illustration EL-0045

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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