Worksheet No. 8
No. 1 a) The generator voltage doubles. What is the input impedance?
>b) The generator resistance RG doubles. What is the input impedance?
No. 2 You like to connect a microphone (R = 100KΩ) to an amplifier. What should be the input impedance of the amplifier to get a voltage optimum?
Microphone output voltage Vout = 10 mV
No. 3 The output impedance of your amplifier is 6Ω. What kind of loudspeaker (4Ω or 8Ω) do you choose to get the best power transfer?
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