Let the resistance of each wire be R
Effective resistance in parallel combination,
RP=4R
⇒R=4RP
⇒R=4×0.25=1Ω
Effective resistance is series combination,
RS=4R
⇒Rs=4×1=4Ω
The effective resistance of a parallel connection that consists of four wires of equal length, equal area of cross-section and same material is 0.25Ω. What will be the effective resistance if they are connected in series?
Held on 30 Apr 2021 · Verified 9 Jul 2026.
0.25Ω
0.5Ω
4Ω
1Ω
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