Refer to Figure P2.68 and assume v S = 15 V, R 1 = 7 , R 2 = 18 , R 3 = 13

Refer to Figure P2.68 and assume v_S = 15 V, R₁ = 7 Ω, R₂ = 18 Ω, R₃ = 13 Ω, R₄ = 15 Ω, R₅ = 17 Ω, R₆ = 15 Ω, R₇ = 14 Ω, and R₈ = R₉ = 10 Ω. Find:

a. The number of nodes in the circuit.

b. The power delivered by the source v_S.

c. The equivalent resistance seen by the source v_S

Figure P2.68

 

R3 ww ww R4 R2 Vs Rs R9 w ww Rs ww