FIGURE 21-2 -Which of the following equations represents a Kirchhoff's voltage rule for the circuit shown in Figure 21-2? A) -6 V + 2 V - (6Ω)i₃ = 0 V B) +4 V - (8Ω) i₂ - (12Ω) i₁ = 0 V C) -(8Ω) i₂ + 4 V + 6 V + (12Ω) i₁ = 0 V D) +6 V - (12Ω) i₁ - (8Ω) i₂ + 4 V = 0 V E) none of the above

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Quizplus · Accepted Answer

Kirchhoff's voltage rule, also known as Kirchhoff's loop rule, states that the sum of the voltage drops around any closed loop in a circuit must be zero. Option D is the correct application of this rule for the given circuit, where the voltage drops across the resistors and the voltage sources are accounted for. Option A and C have incorrect signs for the voltage drops across the resistors, and option B does not account for the voltage drop across the 6 ohm resistor. Therefore, the correct answer is D.

FIGURE 21-2 -Which of the Following Equations Represents a Kirchhoff's Voltage Rule