Question

b) Ache a corrente no circuito.

Answer 1

Circuito a)
$\frac{1}{R_{eq}} = \frac{1}{R_1} + \frac{1}{R_2} \\ \frac{1}{R_{eq}} = \frac{1}{2} + \frac{1}{6}\\ \frac{1}{R_{eq}} = \frac{6+2}{12} \\ \frac{1}{R_{eq}} = \frac{8}{12} \\ R_{eq} = \frac{12}{8} \ \Omega \\ I = \frac{V}{R} \\ I = \frac{24}{ \frac{12}{8} } = 16 \ A$
Circuito b)
Req sai pelo mesmo cálculo da letra a)
Req = 2/3 Ω
I = V/R -> 10 / (2/3) = 15 A