The Currents in an Electrical Network Are Given by the Solution

question 137

Multiple Choice

The currents in an electrical network are given by the solution of the system $$\left\{ \begin{aligned}I _ { 1 } - I _ { 2 } + I _ { 3 } & = 5 \\3 I _ { 1 } + 4 I _ { 2 } & = 19 \\I _ { 2 } + 3 I _ { 3 } & = 28\end{aligned} \right.$$
Where I₁, I₂ and I₃ are measured in amperes.Solve the system of equations using matrices.

• A)I₁ = 5, I₂ = 4, I₃ = 8
• B)I₁ = 4, I₂ = 4, I₃ = 8
• C)I₁ = 3, I₂ = 4, I₃ = 8
• D)I₁ = 2, I₂ = 4, I₃ = 8
• E)I₁ = 1, I₂ = 4, I₃ = 8

---

Definitions:

Free Blacks

African Americans who were not enslaved before the abolition of slavery in the United States, living with limited rights in both the North and South.

Southern States

Refers to the states located in the southeastern and south-central United States, historically known for their unique cultural, historical, and economic characteristics.

Family Continuity

Refers to the ways in which families maintain their structure, traditions, and relationships over time, often across generations.

White Preacher

Typically references a preacher of European descent, often associated with the leadership of religious congregations in predominantly white communities.