Given R$1=$R$1=18$ and RL$=$RL$=6498,$ what tuIf the secondary current is $50$ mA$,$ the primary current is $\_\_\_\_\_\_\_\_.$

Question $3$Select one:

A$.$

$50$ mA

B$.$

$150$ mA

C$.$

$48\mathrm{.}7$ mA

D$.$

$300$ mA

rns ratio aa in the ideal transformer below will achieve maximum power transfer? $($Hint: ZinZin of the transformer must equal$$Z$$tZt$$ of the primary side $)$

Use up to $2$ digits after the decimal point if necessary in your answer below.