If an ammeter is connected between points A and $B,$ it will read $q,$ To read a positive value, the red lead of the ammeter must be connected to point $q,($A or B$)$

What value must R$2$ be adjusted to in order to balance the bridge? $q,$

When balanced, an ammeter connected between points A and $B$ will read $q,$

When balanced:

$R2=,V2=$

$V3=,I1=$

$V1=,V4=$

Without Ammeter connected, find:

$V1=$

$V2=$

V$3=$

$V4=$

$It=$

$I1=$

$I2=$

$I3=$

$I4=$

With Ammeter connected, find:

V$1=$

$V2=$

V$3=$

$V4=$

$It=$

$I1=$

$I3=$

$Rt=$

$I2=$

$I4=$

$.$