Question

Give me its full solution please.

Answer 1

As They are parallel.

$\frac{1}{r1} = \frac{1}{4} + \frac{1}{4} \\ r1 \: = 2$

And that combination is series to 13

r2 = 2 + 13

r2 = 15

V = IR

12 = I ×15

I = 12/15

I = 0.8A