With reference to the circuit in Fig. $3$:

$($a$)$ identify all two$-$terminal elements that are in series and all two$-$terminal $30\%$

elements that are in parallel,

With R$1=$R$2=(1000+\backslash$eta $)\backslash$Omega $,$R$3=$R$4=(1000+\backslash$theta $)\backslash$Omega $,$R$5=(10000+\backslash$gamma $)\backslash$Omega $,$

calculate:

$($c$)$ the voltage gain Vou$($t$)/($V$)$in in$($ V$)/($V$),$ and

$40\%$

$($d$)$ express the voltage gain in dB $.$