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sorry to bother you all again but i have a small question i cannot do. it is
on analogue electronics, which i don't know if any of you can answer.
here it is, its only worth 6 marks.

an amplifier has a second order gain/frequency response with a lower cut-off
frequency of 350Hz, an upper cut-off frequency of 4kHz and a mid-band
voltage of 50 dB.
sketch the graph of gain against frequency.

estimate the voltage gain in dB at the following frequencies.
i) 20Hz
ii) 350Hz
iii) 2kHz
iv) 10kHz


thanks if any of you can help.
paul