Question

Plz help me only question no. 5

Answer 1

Current(I) = Voltage(V) / Resistance(R)

Answer 2

$v = 18v \\ r = 12fi \\ v = ir \\ i = \frac{v}{r} \\ i = \frac{18}{12fi} \\ i = \frac{3}{2fi} \\ \\ i = 1.5fi$