Find the currents flowing in the circuit in Figure 21.25.

Strategy

This circuit is sufficiently complex that the currents cannot be found using Ohm's law and the series-parallel techniques-it is necessary to use Kirchhoff's rules. Currents have been labeled I₁, I₂, and I₃ in the figure and assumptions have been made about their directions. Locations on the diagram have been labeled with letters a through h. In the solution we will apply the junction and loop rules, seeking three independent equations to allow us to solve for the three unknown currents.

Transcribed Image Text:

R₂ 2.5 Ω· a 12, 12 E₁ = 18 V b C 1₁ 13 E₂ = 45 V E2 C R₁ ww 6.0 92 + 0.592 g 12 www 0.5 Ω d 13 12 e R3 1.592