With Local Feedback: A base-biased amplifier has a local feedback resistance RE of 50 ohms, an internal emitter resistance re' of 3.93 ohms, an ac load resistance rc of 800 ohms, and an ac base voltage of 232 mV. What is the voltage gain and the ac output voltage?

Answer: The voltage gain equals rc divided by the sum of RE and re', which is 16.9. The ac output voltage is the product of 16.9 and 232 mV, which is 3.92 V.

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