The effective resistance of a parallel connection that consists of four wires of equal length, equal area of cross-section and same material is 0.25 Ω. What will be the effective resistance if they are connected in series ? (1) 4 Ω (2) 0.25 Ω (3) 0.5 Ω (4) 1 Ω
Option 1) If the wires are connected in parallel then Req=R/4=0.25 ⇒R=1Ω So, after they are connected in series Req=4R=4Ω
