Question

Question 7 Find the current in the 18-resistor in the figure below. B A B A C E Lun V A = 3-02 B = 9-02 C = 4-02 P = 18-0 JE -2-02 Let V = 18 volts.

Answer 1

The two B resistons are in parallel so the equivalent penistance of them Ri BXB B+B 9x9 9+9 = 4.5 32 It allel This R, and À one in senien so the equivalent noistance of them R₂ = At Ri 3+4.5 = 7.5.2 Ther neistons C and Dare in pon so the equivalent nenistance of them CXD R3 CAD 4x 18 4418 = 3.2352 R3 and Earre in Series so the equivalent noistanee of them Ry = R₂ + E = 3.27+2 = 5.27 R2 A R₂ and Ry are in paralled so the equivalent menistance of them Rg RzxRu R2t Ry 3.5X5-21 Ry 7.5 +5.27 Het = 3.152 Rg and A are in series so the equivalent resistance of them i.e. the equivalent pristanee Reqa A + R5' = 3+3.1 = 6-12 ..CSSearted withreamscanner

Total cament leaving the battery IT v Re 18 G1 = 2.95 A current through Runniston is. R2 In IT R₂ tru 7.5 3.5+ 5.27 X 2.95 =1.73 A The current in D = 182 neniston is ID x Iy Dae 4 X 1-73 18+4 20.315 A D CScanned with CamScanner