How do you find equivalent resistance in a circuit?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
The method depends on how resistors are connected:
- Series circuits: Add all resistances together (R_total = R₁ + R₂ + R₃ + ...)
- Parallel circuits: Use the reciprocal formula (1/R_total = 1/R₁ + 1/R₂ + 1/R₃ + ...)
- Complex circuits: Break down the circuit into series and parallel sections, solve each part, then combine the results
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