How do you find equivalent resistance in parallel (step-by-step)?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
- Write down the parallel resistance formula: 1/R_eq = 1/R₁ + 1/R₂ + 1/R₃
- Find the reciprocal of each resistance value
- Add all the reciprocals together
- Take the reciprocal of the sum to get R_eq
Example: For 6Ω and 3Ω in parallel: 1/R_eq = 1/6 + 1/3 = 1/6 + 2/6 = 3/6, so R_eq = 6/3 = 2Ω
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