(a) In closed loop EFGDE
$i_{2}R_{2} = E_{2}$
$i_{2} \times 30 = 3$
$i_{2} = 0.1A$
In closed loop ABCEA
$- i_{1}R_{1} - E_{1} + E_{2} + E_{3} = 0$
$- i_{1} \times 10 - 3 + 3 + 2 = 0$
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ i_{1} = 0.2A$