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3 cards from this section. Quick, good the night before a test.
What is the general formula for voltage gain in an amplifier?
Think about the relationship between input and output voltages.
What configuration connects the input to the emitter?
Remember where the base is placed in the circuit.
What is the primary purpose of an amplifier?
Consider the function of amplifiers in audio and broadcasting.
True or False: The voltage gain for a common base amplifier includes a negative sign.
Reflect on the phase relationship in amplifier configurations.
Given a common base amplifier with an input impedance of 25 ohms and a source resistance of 50 ohms, calculate the effective input voltage at the emitter if the source voltage is 5V.
Think about how resistances in series affect voltage.
If the transconductance g_m is 20 mA/V and the output load resistance is 500 ohms, what is the voltage gain?
Multiply transconductance by load resistance.
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