Preview of practice Impact Of Emitter Resistor On Gain (27.4) - Common Emitter Amplifier (contd.) (Part B)
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Impact of Emitter Resistor on Gain

Practice - Impact of Emitter Resistor on Gain

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Practice Questions

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Question 1 Easy

What is the formula for voltage gain in a common emitter amplifier?

💡 Hint: Consider how R_E affects gain.

Question 2 Easy

Define transconductance.

💡 Hint: Think about what controls the output current.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What effect does an emitter resistor have on amplifier gain?

It increases gain
It decreases gain
It does not affect gain

💡 Hint: Consider the role of gain in relation to stability.

Question 2

True or False: The emitter resistor can improve the amplifier's input resistance.

True
False

💡 Hint: Think about how R_E connects in relation to input source.

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Challenge Problems

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Challenge 1 Hard

You are tasked with designing a common emitter amplifier with a specific voltage gain of 50. If the transconductance g_m is 5 mS, calculate the required values for R_C and R_E assuming a specific configuration.

💡 Hint: First isolate R_C or R_E and consider realistic resistor values.

Challenge 2 Hard

Explain how to mitigate input signal loss while keeping the emitter resistor in a circuit and provide a design example using bypass capacitors.

💡 Hint: Refer to the RC time constant and how it affects frequency response.

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Reference links

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