Question

Use this figure to answer questions 23 to 25 [Total 10 Marks]

For numerical responses, please input the number ONLY. Do NOT write the units.

Use this figure to answer questions 23 to 25 [Total 10 Marks] For numerical responses, please input the number ONLY. DO NOT write the units. C 0.1 ks2 V.(jo) G(jo) = V(jo) Assume the input signal has very very low frequency (i.e., only dc) content. For this assumed input signal, determine the gain in decibels [dB] of the transfer function G(jw). (HINT: you can answer this without having to derive the transfer function) [2 marks]

Answer 1

USD soli Given circuit Let it be is as follows Alle ws Let 21 0.1ka --Matt <+ I Capacitor) of Given input signal is a DC signal Ze = 1 1 Campedance of capace 1 S=jw ,wazaf Let z be the equivalent decistance ze & lk2 z = zc Xlk 4 ) Gerosion C +SC Zc+Ik /2= it's 7 Itse can be redraw circuit above the 21 Now 1 ) 0.1k2 bio as follows Let ve and v be the modes att Positive and negative terminafs of Op-amp... Amplifier looks like Inverting This circuit [: Iin = 0) So, I, I, Scanner with Dit CamScanner

G#se) 2-4 m) Ciese) a quwse Volju) -10(itiwe) Vi lyw) As in Question it is given that signal has only De content [w=0) = 9;w)= voljw) = -10 v;GW) -10 is the gain Now finding gain in decibele 5 Gciwde = 20109. (en cours) =) G Gw28 = 20 logo (-10) > Gw)le = -20 do Scanned with CamScanner

According to question final answer is -20 without units.