A multiloop circuit is shown in the figure.Some circuit quantities are not labeled.It is not necessary to solve the entire circuit.The current I₁ is closest to A) zero. B) +0.2 A. C) +0.4 A. D) -0.2 A. E) -0.4 A.

Question

Quizplus · Accepted Answer

In the loop which contains the source IS and the resistors R1, R2, and R3, the voltage drop across R1 is equal to the voltage drop across R2 and R3 combined. Thus, the current through R1 is equal to the current through R2 and R3 combined. Therefore, I₁ = (IS - (R1/R1+R2+R3)*IS) = 0.2 A (given that IS is 0.4 A).

A Multiloop Circuit Is Shown in the Figure