Física II ⇒ Fisica geral e experimental II Tópico resolvido

[Danilo308]

Calcule a intensidade de i3 no circuito abaixo:
a resposta é:

a) 5A

b) 1A

c) 7A

d) 0,8A

e) 10A

[MateusQqMD]

[tex3]\sum \, \text{fem} = \sum \, \text{fcem} + \text{R}_{\text{eq}} \cdot \text{i}_3 \,\,\,\, \Rightarrow \,\,\,\, 36 = 12 + 2,4 \cdot \text{i}_3 \therefore \,\,\,\, \boxed{_{_{{⠀}_{⠀}}}\text{i}_3 = 10 \, \text{A}^{{⠀}^{⠀}}} \begin{cases}
\text{U}_{\text{AC}} = 4 \cdot \text{i}_1 \\\\

\text{U}_{\text{AC}} = (2,7+3,3) \cdot \text{i}_2 \\\\

\text{i}_1 + \text{i}_{2} = 10 \, \text{A}
\end{cases} \quad \Rightarrow \quad \boxed{_{_{{⠀}_{⠀}}}\text{i}_1 = 6 \, \text{A}^{{⠀}^{⠀}}} \,\,\, \text{e} \,\,\, \boxed{_{_{{⠀}_{⠀}}}\text{i}_2 = 4 \, \text{A}^{{⠀}^{⠀}}} [/tex3]

Código: Selecionar tudoSHIFT+Click na eq = ZOOM

[tex3]\sum \, \text{fem} = \sum \, \text{fcem} + \text{R}_{\text{eq}} \cdot \text{i}_3 \,\,\,\, \Rightarrow \,\,\,\, 36 = 12 + 2,4 \cdot \text{i}_3 \therefore \,\,\,\, \boxed{_{_{{⠀}_{⠀}}}\text{i}_3 = 10 \, \text{A}^{{⠀}^{⠀}}} \begin{cases}
\text{U}_{\text{AC}} = 4 \cdot \text{i}_1 \\\\

\text{U}_{\text{AC}} = (2,7+3,3) \cdot \text{i}_2 \\\\

\text{i}_1 + \text{i}_{2} = 10 \, \text{A}
\end{cases} \quad \Rightarrow \quad \boxed{_{_{{⠀}_{⠀}}}\text{i}_1 = 6 \, \text{A}^{{⠀}^{⠀}}} \,\,\, \text{e} \,\,\, \boxed{_{_{{⠀}_{⠀}}}\text{i}_2 = 4 \, \text{A}^{{⠀}^{⠀}}} [/tex3]