Question

A constant voltage V = 25 V is maintained between points A and B of the circuit (Fig. 3.49). Find the magnitude and direction of the current flowing through the segment CD if the resistances are equal to R₁ = 1.0 Ω, R₂ = 2.0 Ω, R₃ = 3.0 Ω, and R₄ = 4.0 Ω.

Answer 1

Current is as shown. From Kirchhoffs Second law

On substitution we get i₃ = 1.0 A from C to D