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

Question 1 / 2066636eed28f7522a1c51da9b

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 20

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

Cc blocks any AC component associated with the input from reaching the base. Cbp helps minimize degeneration of the AC output signal.

Cc blocks any DC component associated with the input from reaching the base. Cbp helps maximize degeneration of the AC output signal.

Cc blocks any DC component associated with the input from reaching the base. Cbp helps minimize degeneration of the AC output signal.

Cc blocks any AC component associated with the input from reaching the base. Cbp helps maximize degeneration of the AC output signal.

Question 1 / 2066636eed28f7522a1c51da9b

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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