Question

Urgentee, alguém me ajuda

Answer 1

$\text{DDP:}\\U = 30 \times 6 = 180 \text{V} \\ \\\text{Corrente no resistor de 25 \Omega :}\\i = \frac{180}{25} = 7,2 \ \text{A}\\\\\text{Resist\^encia R:}\\R = \frac{180}{5} = 36 \ \Omega$