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close this bookAmplifier Teaching Aid (DED Philippinen, 86 p.)
close this folderLesson 8 - Small Signal Amplifier II
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View the documentHandout No. 1
View the documentWorksheet No. 8

Worksheet No. 8


Figure

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 = 100KW) 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 6W. What kind of loudspeaker (4W or 8W) do you choose to get the best power transfer?