B$.$ PART B

Figure $2.$ Current Dependent Current Source

Please explain the working principle of the circuit below and also comment on the results of Iin, Iout and their relationship. Also please comment on how the gain changes when we make the following changes to the circuit: Iin$=1$mAdc

R$1=5$kohm R$2=1$kohm and also when, Iin$=2$mAdc R$1=5$kohm R$2=2\mathrm{.}2$kohm $($two circuits in total$)$